sweetie, i don't think you're going to offend anyone with a statement like that. I would dare say 99% of the those who have fully transitioned (meaning hormones, surgery, the whole enchilada) would not blame you even the tiniest bit for saying you would not want to be with somebody who wants to be a woman. I've been following the thread from the since you started it and don't recall you saying you are bisexual or even curious about being with a woman.
There is a joke/one-liner told around here that goes: what's the difference between a CDer and a transwoman? The answer: two years. I'm not sure how that joke grabbed any traction ever.... because it's the furthest thing from the truth. Many CDers (this one included) have absolutely no interest in fully transitioning. We simply like to wear clothes that were intended for women to wear.
The extent of my crossdressing is that I hope to someday share it with my wife. Yes, I am married have a kid, am straight and the furthest I hope to go with it is have fun being feminine and that my wife would be able to share in that fun with a new girlfriend every once in a while.
The part of your thread that concerns me the most is what was the actual intent of using the dating app. The worst case scenario is that he hoping to find random hookups that would lead to YOU catching something that would lead to severe health problems.
I wish you the best. Know that you have found a group of "ladies" who I am certain are trying to give their best, honest and most sincere advice for your (as well as your boyfriend's) well being.
Big hugs,
Sayyidah 'Sue'