So, let's start with I have suspected bipolar and that can make me act really out of character (drinking, poor decisions, ruining relationships) and about a year and a half ago I ended up cheating on my boyfriend with a 'friend'. We were at a mutual friends house and I was drunk, he was not, and I feel he took advantage of my state of mind. This guy took my signals as a declaration of love and I feel bad for him because I couldn't return that. However, a year and a half later and he's started being incredibly spiteful towards me and making my life hell (like, he messaged my friend saying I was bad in bed etc. For no reason)... What am I supposed to do?! I'm grown up enough to want to be civil with this guy but he's just vile towards everyone. I'm very worried my partner will find out as this guy seems to go round telling everyone I'm some slut! Help?!