We just got back yesterday. We never noticed love bugs. The weather was hot and humid. We're from Indy, and are not used to humidity, so we found it pretty bad. We were sweaty most of the day. If you have long hair, remember ponytail holders. I was much cooler with my hair off my neck! After it would rain, it seemed even more humid, more like a sauna.
However, we would endure every second of that heat and humidity because of the crowds we experienced. Oh wait, I should say DIDN'T experience. It was fantastic! On our DHS day, we got there at rope drop. My DH ran ahead to get fast passes for TSM while we walked the kids over. We met up, got in stand-by line, and walked right on. Our fast pass return time was 9:45, so we did the 9:40 Playhouse Disney show, then headed back over to use our FP. However, the stand-by line at 10:10 was still only 15 minutes, so we did stand-by again. Then we got one more set of FP after we got off. We used both of those sets later in the day, but even then, the stand-by wait was only 30 minutes. This was on a Wednesday, so no EMH or Fantasmic to bump up crowds. Hope that gives you an idea of how awesome the crowds were. We did not wait more than 15 minutes for anything, and all but 3 waits were less than 10 minutes. We did get FP even when the lines were short, and the great thing was that the return time was so soon we got lots and used them later in the day when lines were a little longer. If I didn't say it clearly enough, the crowd level was great!!!
Have a wonderful trip!