Hmm ya know I think I would be in the "it depends" camp but I might be that way because of past experiences and honestly maybe my age?? I don't mean to put age in there in a bad way but I'll explain in a moment.
My mom has been online/app dating since at least the early 2000s. She's been on many of the sites though last year she told me she just joined Tinder
(I use that emoji because of the rep it has lol). There's been two consistent things over the years she's complained about 1) The guys
she (and I stress that because it's not always the case with every person) attracts and connects with is less interested in long-term relationships and more interested in...(you get the drift) when she's looking for a life partner 2) Everyone is set in their ways. She was in her 40s when she started online dating with a divorce in her past and 2 kids, she was used to how she was. Well so are the other people. They have pasts, they may or may not have kids or divorces and they were at an age where they they were less interested in moving with the person and more like "listen ain't nobody got time for that you can't handle what I am next please" and it was that way with on both sides (hers and the guys she would connect with). Some of the things she tells me she gets annoyed with the guys I'm kinda left with "huh? That doesn't seem to be a big thing but okay" but everyone has their things ya know.
She did have 1 very serious relationship come out of it (I don't remember where they met could have been POF) but I never liked the guy, always had a bad vibe from him. I was glad when after 6 or 7 years of on/off "we're going to get married just not now" talks it finally ended.
Okay so back to my past experiences and age thing. I'm in my early 30s now but even when I was younger most of the communication was through FB at that time and then text to an extent. Before I met my husband (and yeah I was young when I did meet him) I dated for a while and I guess back then we were more sorta less stringent on things. Millennials have sorta been known to be more picky with partners, waiting longer to get serious and maybe that played a role in that, where we just sorta shrugged off and didn't see
as big of an issue because if we were just having fun with the person our perception of behaviors were different. But if I followed the conversation correctly I don't know that the person was meaning
always waiting a week or two to get back but seemed to be more responding to the weekend in question. I don't even know that I would have a set time honestly. When I first met my husband neither one of us was looking for anything serious or long-term, we didn't even become officially boyfriend and girlfriend til 7 months later and in that time we just hung out and were free to see other people, we sure hung out a lot but we went into meeting each other (completely coincidental and not on a dating site so maybe that's a bit different than the OP) with zero expectations of an actual serious relationship occurring. There were lulls in talking just natural ebbs and flows but completely admitting here we were young. I still think lulls happen but I understand questioning what that lull means.
But I'll counter with a former coworker of mine who is now in her late 30s and boy she loves to say on FB her issues. She's content with being single for the most part but she'll screenshot some of the conversations on FB when she's actively dating and blast the heck out of the guy and sometimes I'm on the guy's side. Oh she gets a lot of ewww stuff but sometimes it'll be like the guy she's connecting with says "Hello beautiful how are you today" and she's like "uh how about you not call me beautiful you're blocked now". I'm sure there's a lot more to that story so I can't completely say she's in the wrong, maybe the guy just constantly calls attention to her looks IDK but sometimes she takes on the "ain't nobody got time for that" vibe too. She has been previously married though she has no kids and doesn't want kids either.
In terms of past experiences without divulging too too much it's mostly related to me completely misreading the situation and I've found out later on on a few very serious situations that what I interpreted as sudden radio silence was really the person dealing with some really serious situations and that was explained when they got back to me (which varied in length). Still til this day I feel guilty when I consider what I thought was happening in those instances and what really did happen. That includes a dating partner or two, two friends and a relative. I don't mean to say that's at all applicable to the OP's situation just that it has affected me in how I view time going by between responses.
), but my daughter dabbles and from her stories it sounds like a minefield on shifting sand with moving goalposts. A nightmare. I think 
now we know what to do next time we get together 
and have been mostly single since, a few “relationships“ in there but I use quotes because they never seemed too serious. With that said I still would find it odd to be hitting it off with someone in the way Christa is describing and then go missing. In my experiences it’s typically meant something was amiss. You’re not wrong, there could totally be some unforeseen serious circumstances that are causing the radio silence. If that’s explained at a later date than I’m sure it would be understood but until then my experiences would say to error on the side of caution.
FWIW I don’t think it’s you as a person he rejected as much as the situation you presented of wanting to jump in with both feet. A lot of people would back away from that and although you putting it out there was at least honest, it’s a lot, even if the person initially responded politely.
