Well i have to start this story off with a bit of an intro to the situation so here it goes:
My friend sophmore year hooked me up with this wonderful girl (that he had previously dated, and she was his best friend ). She was cool and we started dating a couple months after we got together. The problem was that my friend and my girlfriend still hung out by themselves a lot and i got really uncomfortable with it. They would do stuff alone, like watch movies or go shopping. I approached my best friend and asked what was going on between them and he pretty much told me that she was using me just cuz she wanted a boyfriend, and that she didnt really like me. I was crushed and fully prepared to break things off with her. I talked to her about it and what ensued was a huge fight between my best friend and my girlfriend. They never spoke to each other for like a year and i didnt mention one around the other. Also i had a suspicion that during this time my girlfriend was cheating on me with my friend.
fast forward to yesterday:
I had a get together at my house and i invited my girlfriend but my friend heard about it and came over too. They hit it off like nothing had happened before and were cracking jokes and having a great time. She ignored my the whole night and talked to him, and i got completely depressed. I dont want to talk about it with her because it would bring back all the horrible memories from when i was at home on the weekends by myself and my best friend and my girlfriend were
at one of their houses watching movies together. I feel horribly depressed and i dont know what i should do or who i can talk to about it.
any help would be greatly appreciated.
Also me and my girlfriend have been going out for a year and a half and the first three months of our relationship was when my friend and my girlfriend were doing stuff.