This sounds so familiar. When I first came out and was living full time, I tried one dating site that had other trans. Unfortunately, this type of site attracted the wrong type of guy ie. ->-bleeped-<- ->-bleeped-<- ugh! I vowed never again.
So I joined a couple vanilla dating sites, and like you, clearly said who I was, and that I would be having surgery sometime soon. I was surprised by the number of dates, but maybe because of my age, I don't know, but dates were going to movies, out for a drink, coffee, play golf, cards etc.
I think being pre op - thank God - discouraged them from getting touchy feely.
Almost 2 years ago met a great guy, for some reason he fell for me. He wasn't my type either - he's a cop and I always thought of them being super macho, the type of guy who's got lots of buddies and might not have me around for fear of being the invisible girlfriend or he'd be embarrassed. But he is different and was understanding that I was over a year from having GRS.
Not sure how, but two years later, still together, engaged, and happy.
There are super guys out there, just have to weed out the butt holes and ->-bleeped-<-s.