False rape accusations?

Was anyone else accused of rape? Why do they lie about something so serious that they usually have experienced in the past ? I’ve personally been through sexual assault and they were with me when I realized what happened . (I know That doesn’t mean I couldn’t do it but Trust me when i say I’m not capable) I fear ever fOrcing anyone into anything and can dissociate heavily during sex. I knew they’d call me a abuser but that was low even posting bruise photos I never did as “proof”. (And calling me a racist for regular ass eyeliner lmao basically a bunch of lies) Idk if it was a try to ruin my chances of making friends so I stayed isolated or they genuinely convinced themself I did to justify their actions. either way I know the truth but stilll have to live with being treated like a monster. I don’t blame anyone for avoiding me now I would too if I only heard his side but this existence is lonely I can’t even defend myself and I’ve never felt more insane he ruined my life