This is my first time posting, so please bear with me. I'm unsure of how to feel about my boyfriend's relationship with his best friend. I would never want to interfere and am glad that he has a friend that he's really close to, but I can't help but feel jealous about it, even though I should probably just relax and support him. The difficult part isn't that he has a best friend, it's that his best friend is another women. I think men and women can be friends, but I'm feeling like theirs is more involved than normal for our circumstances. There's a few things that have made it hard: they've discussed dating each other in the past, they text each other every day, he confides in her about our relationship problems and she about her marriage, and he wants to invite her and her family in almost everything we do; in those activities, her and him seem to be the ones interacting the most, while her husband and I kind of twiddle our fingers. I guess what kind of tipped the scale for me and led me to post was this Saturday - she gave him a father's day present (the same one I was going to get him, which it's petty to feel bad about because she didn't know), and then posted on his facebook wall how amazing of a dad he is and we love you, to which he replied the same, except he said "I love you guys" and didn't include me. A part of me thinks this is such a sweet and thoughtful gesture from her because he is a single dad, and I also tell my girlfriends I love you all the time, so no big deal right?, but I'm still not okay with this and all of it. I know they're saying I love you to each other and our families as a whole, but things like this are said and initiated by them only; in other words her husband doesn't say it, post a lot of comments on his Facebook wall, or buy him a present. Personally, I would feel uncomfortable and like I was crossing a line by doing these things with her husband. I guess as a whole, I'm feeling like she's replacing my role as a girlfriend - to be his best friend and to make him feel special and loved, but on the other hand, I feel like I should just relax, embrace her too (she's just being a good friend), and focus on our relationship, not theirs. I'm confused as to how to handle this. I've been honest with my boyfriend about feeling jealous and uncomfortable (was hoping for reassurance and perspective, not to try to put a wedge in), but even though he acknowledged my feelings, there's still no solution for what to do with my feelings. I'm at a loss! Am I overracting or do I have a right to feel this way? I have to add as well that her and I haven't always been on best terms. She tends to have short patience with people and write them off really quickly about things and assumptions. As well, my boyfriend has supported her feelings when we weren't getting a long with each other (he tends to do this as a whole and not just with her). All in all, it's made it really difficult to find a solution. Help please!