I've been in a relationship with a girl for a long time now. I care about her, but I don't feel like I am in love with her. These doubts have slowly grown over time, and I'm extremely conflicted. On the one hand, she loves me dearly and would be very upset if we broke up. On the other, it seems unfair to both of us to stay in a relationship that I cannot invest my feelings into.
I was completely shocked when, recently, I was introducing myself to a girl and had a nervous feeling in my stomach. The kind you got in middle school. It seemed completely asinine for me to have that kind of feeling, especially when I've been in a relationship for so long. I have no idea what's going on with me, but this has been a large source of doubt in my mind. I'm awake right now because I can't get past it to get to sleep.