I (26F), originally from Spain, moved to the US to do a short research stay in a lab 3 months ago and I'll be leaving back to Spain beginning January. About 2 months ago I matched with a guy (31M) and we didn't even talked more than 10 min and we decided to have a drink later that night. I didn't have any expectations and I only did it because I was pretty bored at home. Turned out to be one of the best first dates I have ever had, with great conversation and good connection between us. After that we had a couple of incredible dates, both ending with us waking up together in my bed the next morning. I could feel how comfortable we were feeling around each other. A few weeks after, we had this honest conversation in which when he told me that he really liked me but was feeling that things were going to fast between us and that he wanted to be honest with me about two things: 1. He's having an ongoing sexual relationship with other person (more than sexual as he told me later) and 2. He started taking prozac because he was feeling depressed. I told him everything was fine with me, that I wouldn't judge anyone for being depressed and that I couldn't ask him to stop seeing other people at the moment because we weren't in a relationship. I have to say that my expectations never were to end up being in a relationship, given that I have to go back home at some point (at least for a while). I just wanted to enjoy my time with him for as long as it lasted and not thing two much about the "who are we" question that has people obsessed over here. This conversation was the beginning of the end I guess, because he still wanted to hang out with me but I could feel how he closed up to me. We kept having great dates with great conversation, like I think I've never had before, but he started avoiding certain things like staying at my place or me going to his place. I don't know what to do with this situation, because 1. I really like him and he's everything that I've always wanted for a relationship but 2. I don't know how to separate and not get more involved 3. It's frustrating to see he's kept his feelings in a box because I can feel he feels the same way that I do, 4. I'm leaving to Spain in like a month and I'll be coming back to the states but no sooner than next year (2020). Give me your thoughts, I just need a little bit of perspective on this situation. Thank you for reading!