I've been friends with someone for 10 years. Shes in her 20s and I'm in my 30s. We were friends for a short while, then dated exclusively for a couple of years. That didn't work out. She ended up cheating on me and lying about it, It wasn't surprising that things didn't work out between us, things weren't going so well towards the end and I actually expected the relationship to soon end, but I never thought she'd cheat on me. However, we talked about it and I understand why she did what she did when she did it. That doesn't make it right, but I understand her reasoning. We have been friends since and talk about a lot and know a lot about each other. But, for some reason, she likes to hide her relationships from me and I can't understand why. Her last relationship has been going on for a couple of years, but didn't tell me anything about it for over a year. They are pretty serious and engaged, but I've heard all this from other friends that know her. She swears to me that shes not even going out with that guy anymore. When shes at his house and I call, she'll tell me shes at familys house. When they are out together and I call, she'll tell me shes out with her family or friends. When they go on trips together, she tells me shes going with family. There isn't anything more between us than friends. We both trust each other a lot (or atleast did). I'm pretty sure she tells me the truth about everything else, but not her relationships. If I tell her I'm going to dinner with someone or she sees me someone with a female, she always asks who she is and acts all jealous. In the past I've asked why she wants to hide her relationships from me and she says that she doesn't know how I'll "take it" and seems to think I'll get mad. By hide, I'm not talking about simply not telling me, but completely lying about it and denying it. There isn't anything more between us than friends, so its not like shes lying to be with me or get anything else out of it. And thats what bothers me the most. THere shouldn't be any reason to lie about it, but she does. So all that does is make me wonder what else she lies to me about and want to question whether anything she tells me is true. Does it make sense to anyone why she would want to lie about her relationships after we haven't been together for 7 years? I realize sometimes being friends with an ex is difficult, especially when they get involved with other people, but I just don't understand this. I'd especially appreciate a female perspective on this. Thanks!!!