I have a friend who TRAs would call a chaser. He's a gay man who doesn't actually buy into gender ideology, but has a huge fetish for pre-op trans women(he calls them femboys in private). He is currently dating trans woman #4 and the previous 3 have all left him emotionally and financially drained. The new one has a job at least, so that's a plus over the others, but he's in perpetual state of being pissed off and anything you say or do can cause an outburst.

It's like watching someone repeatedly stick his hand into a blender, get bandaged up, then do it again thinking it'll be different.

how she feels so incredibly stressed with one of them having a crush on her because he insists on telling her even tho she tried to make it abundantly clear that she already knows and that the feelings are NOT reciprocated. (He got a bit aggressive last time she avoided the talk) Now she feels like his emotional vulnerability is her responsibility and I aggressively have to tell her it's not.

I've had regular straight men do that to me before. They know I'm not interested and will never be interested, but they feel the need to burden me with their emotional wellbeing anyway. Your friend has to learn that dumbass men's feelings are not her responsibility.