Why do men keep on having dates with me and then eventually leave?

So before anything I'm a trans woman (20), I do not claim to be a real woman or try to put women down or mock them. So please I'd like to ask you to abstein from comments about it because I already know what I am.

I've been trying dating apps because they feel safer than just dating people from your daily life when I was a teen (friends and classmates).

I do have a note on my profile that notifies these men about what I am before they can chat with me, some unmatch, others will say bad stuff before leaving, but another big amount stay. Everything goes fine we chat for a long time, we have a few dates, but in the end they all seem to lose interest at some point.

It just makes me so tired of meeting a lot of different men every month. I don't understand what they want.