I (22f)have been in an open relationship with my husband(22m) for about 1-2 years. We have been together for a total of about 3 years. We recently met a girl(20) that seems very attached to my husband. When asked about it she admits that she wanted a relationship with him and was told by my husband that the only way for things to get serious is if the three of us were a couple. I feel that she is only dating me for him. She’s admitted to being unsure about being romantically involved with me and I feel the same. She clearly has strong feelings for my husband but he hasn’t returned her affection as we normally just have casual sex with women. She says she wants to get to know me and let things happen naturally but I’m conflicted. She’s an awesome person but I don’t want to be a third wheel. Anyone go through anything similar?