Three years ago I started dating my current boyfriend. We moved in together but as the first year went on, I started slipping into depression. Needless to say my unhappiness started to affect him and ultimately he broke it off. However, he went straight to his best friend, who is a female, and they had every intention of making a long term relationship work. They had tried a few times in the past to date but one thing or another prevented its success. He went away for a month for employment training and came back to single life. He had neither me or her. He came to terms with the effect of his choices. We kept in touch as friends over the course of the next year and decided to get back together. My issue now is that he still holds this friendship with the "other girl". Granted they were friends for several years before him and I ever met, I feel like its time for him to rid her. I absolutely do not think its ok for them to hang out anymore. I guess I'm waiting for the day that history repeats itself. But where is my proper place in this situation, how should I really feel or handle it in a mature manner??