Update on my situation with my bsf's crush...

Turns out, my bsf (not anymore) is a fucking mean person. Ukelele told me how shitty my bsf acted towards him with video proof (ps: she acted mean towards him DURING the time she liked him.) Not even in the tsundere type of mean but in the actual mean way. Honestly, after all the stuff Ukelele told me, I can hardly believe she was in love with him. Who leaves their crush on Read after he trusts you with all of his trauma? He told me that long ago, he trusted my bsf with all his heart. He felt he needed to test her to see if she cared. He asked her if he could tell her about his trauma since he trusted her. She said sure. When he finished, she couldn't give a sh*t. She left him on seen, and when she decided to respond, it was a whole different topic. This made Ukulele kind of upset, but it was okay, he thought. Every time he showed a slight hint of sadness or depression, she would ghost him. I asked him, and he said he chose me over her because I cared. Apparently, I CARED MORE THAN HER AND HIS EX COMBINED???? Ngl I feel bad for him. I'm doing the bare minimum, and he immediately thinks im the one. Am I the one for him? Probably not, but I'm not going to leave him just because he thinks so. He's my best friend at this point. Anyways, that's it. My bsf treated him like shit and she gets mad at me because he likes me (I HAVE NO CONTROL OF HOW HE FEELS ABOUT ME?!?!?)