My best friend has recently introduced me to one of her other close friends who I didn't know previously. Everything was ok at first, she's nice enough - until I found out that she's dating (knowingly) someone who has been convicted of sexual offences. I'm not going to say what exactly just that it wasn't physical, just involved being a fucking massive pervert.
Since I've found this out I don't want to be friends with her anymore. It makes me feel sick that she could date this man knowing that he's done this stuff multiple times. My best friend is also uncomfortable but seems to be able to 'let it go'. She would be hurt if I actively excluded her friend from things. This has all come to a head because I'm organising an event and she naturally wants to bring her partner..
AIBU? On the one hand I think I'm being reasonable but then again I suppose people will argue he's atoned etc.