Oh no, so sorry you feel this way, I feel your anger. I think, personally, that being single has it's pros that a coupled relationship don't. There's nothing wrong with being single. But it is sad to lose friends when they pair up, I've had that happen to me before. I think if somebodies your true friend they would not allow you to feel neglected and they would make sure your included in the fun. If they don't then they're probably not real friends. So sorry your going through this.