<human>: Give me the gist of the text in a nutshell

So I've been dating a girl for about a year. We started off well but I was gone for work much of the time so it was a slow getting to know each other. 6 months into the relationship I had to move thousands of miles away.

Here's my issue. I really like her and enjoy being with her. I could keep puttering along seeing where things go and not get too invested if things don't work out as far as being together goes. This is *not* the case for her. She gets more invested in us by the day. I can tell she's falling head over heels but I feel very little. She constantly tells me how it's killing her to be apart while to me it's kind of a pain but I could wait. Logically I like her a lot, but I think perhaps I just can't build up that kind of connection at a distance.

I planned a trip a while ago to see her very soon for a few weeks. Also, it's almost Valentine's Day... My gut tells me that if this far into a relationship I'm not "in love" or at least emotionally invested I should probably break it off. I'd continue going if we were in person, but the distance thing sucks. She's in it for the long haul, she'll wait for me forever if she has to which just makes me feel incredibly guilty that I don't (yet if ever) feel that strongly.

For reasons outside of my control I have no idea when I'll be able to move back to her city, if ever. She has mentioned maybe moving to where I am, but it'd be a terrible place for her career and well being. It would just be for me.

Basically I need to decide if I should break it off or if I should string it along to see if that spark ignites while she continues falling madly in love and having visions of marriage and children.

Sorry, this was a bit rambling, I'm just very on the fence about what I should do and the time to act is fast approaching.
<bot>: About to see girlfriend again after so long apart, but I feel terrible that our relationship is getting very lopsided. Should I end it?