Relationship advice

Long story short, during covid I met a femboy which I liked a lot at first but as time passed I couldn't stand him anymore. He just trauma dumped every time we talked and I was his emotional trampoline. I went through enough traumatic experiences myself and I don't want to be an asshole to him, but it's just too much for me. What do I do? I want to be his friend, but he becomes unbearable at times. (Will say more extended version in comments since I'm at work rn)