I (F,22) have been in a 3 year relationship with this guy, Mel (M,22). We don't have much in common but we understand and trust each other completely. I love experiences and adventure while he's confined to his room and computer, and stepping out for something I'd find fun or traveling isn't his thing. I love putting in efforts into his interests although I don't really find them fun but when I tried involving him in mine a few times, he never shared the same energy and I'd feel like I was always forcing him to do something I wanted and eventually started doing things I want on my own.Here's where things changed for me. When I met this guy, Nate (M,30) and we became really good friends, I got to know that we share a lot in common. From experiences to adventures to music to literally anything we talk about. We plan so many things to do together and we already have been on a few adventures together and I love the energy we share (my boyfriend is aware of this friend and is okay with me doing things I find fun with others). Eventually he started expressing his romantic feelings for me but he also has a girlfriend and I do not want to hurt that relationship or mine or our friendship by building up feelings for him although I do like him a lot.Even if I do breakup, I do not have any intentions of trying my chances with Nate but the fact that I share that energy with someone else made me realize that I was feeling single even though I had been in a relationship and meeting Nate just helped me remember all those little things that once made me happy.My boyfriend wants to try and work it out but this isn't the first time he's said that and it always ends up feeling like he's trying hard just to make me stay. I really appreciate him trying but I already feel single and tired in the relationship. What do I do?