Here is the background:
I am 25, she is 24. We met through a mutual friend and have been dating for ~1.5 yrs. From the outside looking in, she's everything I want/need. She's athletic, very attractive, a runner and fast as shit, fun to be around, we run and train together with no issues, etc etc etc... But something is missing.
She said "I love you" first about 6 months in and I did not say it back b/c I wasn't ready. I said it eventually, about 1 month later and still question whether I really meant it or not. I've known she isn't "the one" for a while now, but we weren't looking to get married anytime soon so I didn't have to/need to breakup with her. But now, we were 1.5 yrs in and my feelings haven't changed. I can't see us getting married. So why wait until we are 4yrs into a relationship, I'm 28 yrs old and settle (assuming I still feel the same)?
Another argument that was totally unrelated to my feelings sparked the break-up (yesterday). She kept pushing and pushing for answers and I eventually broke down and told her that I don't see us together in the long run (no pun). That was the basically the end of it.
FYI - We currently live together and she stayed at a friends house last night.
My questions are:
1) Am I looking too far into this? We have fun together and enjoy being around each other for the most part.
2) Is there something wrong with me?!? This girl is great, why can't I make things work?
3) I know she will try and convince me to get back together w/in a day or 2. Am I more of an asshole to get back with her knowing my feelings than to just cut things off entirely now?