This is a tough one. I have had to deal with this shit myself and it is not fun.
Try rituals and also the Rune Gebo for partnership. I also recommend time with friends, some processing about it, and being good to yourself. Do not beg, drunk dial, or act like a whipped puppy or forget it, they will never come back. Ignore them, try to have a good time, hit some partys, meet some people, and if you run into them be cool and don't act needy. Say hi, move on and let them come to you.
I asked for help from Father and my Guardien Daemons after I had exausted all my ability to change the situation. I was logical about it and there was nothing I could do. I did get help and we are seeing each other now but I have had some GREAT help from The Bes and Father.
Still, we have to do the work and take advantage of the opportunities and not expect Hell's Army to do it all.
Good luck on this brother
Hail Satan!
Dante