Not in love with my Girlfriend but i want to be

The only thing I can say here, other than expressing huge sympathy, is that I think it's really important to listen to yourself. It doesn't sound like there's an easy answer for you - the care that you have for her is valuable, but if you're feeling like you're missing something critical, that's real too. Sexual chemistry is really important for some people, and not so important for other people ... I used to think that sex was just a secondary thing, something I could live without as long as everything else was lined up right, but I've come to realize that sex and my sexuality are really important parts of who I am.

The one thing to remember is that it's okay to take some time and figure out what's right for you. Doing something just to please her even if it makes you uncomfortable won't help your relationship in the long run, and guilt and good intentions aren't a solid foundation either. You don't have to stay with someone just because they want you to.

 

It's only been a year and you're having doubts about things that are a key part of who she is. Now, there's absolutely no harm in trying to work through it, get the spark back and plenty of couple have to work at keeping that part of the relationship alive. But if it comes down to your attraction to her physically then that's not the best outlook in respect of settling down. Whatever your thoughts, I agree with the other poster that you should take your time in thinking it all through carefully to be sure. Maybe set a few months aside where you commit 100% to trying to get that spark back and then if not, well you tried. Also, take it easy on her self esteem, it doesn't have to be about looks or attraction, its about if you're right for each other in the long term. My guess and this is from my own experience is that the lack of sexual attraction will become more and more apparent, despite the fact you clearly adore her in other ways. It's heartbreaking no doubt but some things can't be forced. If that is the case then think about freeing yourself but also her - for someone who will love her completely just as she is. You both deserve that right.

 

Is there anything she used to like to do but has recently stopped doing like cooking or playing darts? Maybe you could sign up for some joint activity that might excite her a bit and in turn make her feel better about herself.
I know what it's like to want to lose weight but it never seems to work unless you're feeling good about yourself which is a nasty Catch-22.
I don't know if she would ever take up running but since I started, I'm pretty much "high" all the time. Check out the Couch to 5k program. It's very gentle and I'm flabbergasted that I can run 45 minutes straight no problem now.