Freaked out need advise

Im 36 have ptsd and ocd. went through an abusive relationship over the course of 8 years. i have not seen my children since march against court orders, and It hurts so bad. i cant stop thinking about them. I was dating a girl in the late spring and summer and live in a beach town of 75,000 not so big. this girl broke up with me and broke my heart after she knew I was reluctant to open it to just anyone.

after the break up Ive seen her around town, her best friend has been verbally and physically abusive in public, and the ex wont even talk to me. the other day her mother came and saw me with her man, her mother has previously told me to fix the relationship, and ive tried to no avail. the other night i was out with a friend who is a girl just hanging out and the ex gf came up and introduced herself to my friend and ignored me. weird. I ask her old step dad who was her dad most her life what he made of it and he said she was throwing her hat back in the ring. so i asked her out again. she ignored it and i sent her a message telling her like what the hell stop with the psycho stuff and leave me alone if you dont want to go out, she replied back to leave her alone and go away and how much she hates me . then two nights later (shes a lesbian and I was the only guy shes been with in 8 years shes 30) im waiting outside a club for my friend when ex gf comes walking out with some chick, i really didnt care , but then they walk up the street and me and my friend are like half block back she takes the chick and starts making out with her so id see it, then as we walk past (didnt say a word to her ) she starts walking again and past us nudging me . we were evidently walking to the same club but when she showed up she was denied access because I knew the host and she didnt want her there (same girl who i was with when the ex introduced herself randomly last week ) . anyway ive made it adamant to her step dad after this I want her to leave me alone . he says she likes me , I repeated myself I want her to leave me alone. the nudging triggered thoughts of her friend physically abusing me 2 months ago by throwing ice cubes at my head hard in public after verbally abusing me in public over the course of an hour (she still hangs out with her and has never apologized) and I have been fearful and have had bad anxiety since and i cant stop thinking about it and it hurts like hell.i feel repulsed by her at this point im really freaked out and my anxiety is through the roof I just want to drink to drown it out but I really dont want to ya know . What the hell do I do? , shes driving me nuts, and I think she likes it . I don't like any of it and don't want to know any of those people at all .

ouch..

That sounds like a complete nightmare to try and deal with and i'm sorry that you're feeling like drinking - please do try not to - it doesn't help long term and if you're anything like me, drinking heightens the mood that you're already in anyway. Better to be sober and feeling crappy than to be drunk and feeling crappy i think..

Maybe the first step in clearing things up could be to speak to a therapist and work through things a little bit with him/her.. get a few tools that can help you to start unpicking things a bit - ptsd is awful to try and ope with on your own and you've got a lot of other stuff to deal with on top of that..
what do you think?