I posted about this situation here few days/day ago but the situation has escalated fast.

Long story short, my ex has been harrassing me, saying we need to talk and that he needs to explain everything and can and take me out for dinner. Called me multiple times in the middle of the night so i blocked him because i couldnt stand the constant harrassing. 

Well today he texted AND called my now boyfriend who he used to be friends with (my ex doesnt know we are dating) and started to lie to him about me. HUGE fucking lies. My ex said that we have never been together and that when 'i found about his now wife', i tried to stab him/her. I ONLY FOUND OUT HE EVEN HAD A WIFE FEW DAYS AGO?! I have not tried to stab them or anything like that whatsoever. I have never been violent towards him and ive never even seen this wife of his. And he even said that i was crazy and that i was imagining in my head that we were dating when all he ever did for me was to buy me groceries few times. Im starting to think this man is fucking insane. Who comes up with this kinds of stuff??

Well in the texts he sent to my boyfriend he said that he lives in the same city where we live in. And i am so fucking terrified. My ex is crazy. I can not go outside knowing that i can see him there.