I would laugh it off...the CM was just not thinking, but that doesn't mean that she really meant any harm. Just kind of thoughtless...in your case she wasn't thinking.
Use going solo to your advantage! This is my experience...
I have 3 pretty young children (2, 6 and 10) who have been to Disney almost every year of their lives; sometimes twice, so they are very fortunate.
But I have been to WDW 3 times now solo. I feel a little guilty, but I LOVE to do Disney by myself, and it's not like the children don't get to go to Disney ever either.
But it's always because I have a business trip and usually extend it by a day. I have done all 4 parks in one day, plus a trip to the GF spa, the pool and eaten meals. So I wouldn't say I'm much about relaxing.
I know you're going this month, so enjoy! I always do.
I just love to go and decide what I want to do. Nobody is too tired, or too scared, or not tall enough, or too tall, or wants to do something else. It's very fun to just do your own thing.
Of course the one time I saw a real star, I was by myself, and that was sort of a downer not to be able to talk to anyone I knew standing around me. But it was still pretty cool to see Uma Thurman and her children get on Splash Mountain. (She was gorgeous in person; not like other stars I've seen at airports or on the street, that look as terrible as I do most days.)
I think all 3 times I have dined at California Grill at the sushi chef's table and it totally gives me something to do/see. I also usually have lots of attention by the staff and I really enjoy getting to see the show. That would not be possible with my husband and 3 children. You just get a different experience if you can go solo.
You can generally get into any restaurant if you're willing to wait. I've never been turned away to any restaurant including CaliGrill, Ohanas, and Narcoosees. Now I haven't ever tried to do it at CRT. You might be out of luck there.
I have also been really lucky on check-in when I'm solo because I say I'm just by myself so the room doesn't matter, but if you could get me near the X,Y, or Z being that elevators, pool, buses...they will generally go out of their way to hook you up.
Last year, At Bay Lake Towers, I had the most gorgeous fireworks view that I enjoyed by myself in its entirety with a glass of wine in hand. Ahhhh.
I had my picture taken one time by a photopass photographer and they were very nice and told me I was probably having the time of my life.