I'm sorry, but the idea of undergoing serious surgery for another person, because they don't like the length or shape of my legs is utterly inconceivable to me.

I agree with ArtLady, that there are other issues at play here. It sounds as if you were not totally physically attracted to her in the first place, and that you met her on the rebound from another, more passionate connection.

This is the issue here. Your connection - physical, emotional, sexual, spiritual - is lacking.

Deep down you know this, but because you're afraid of leaving you've focused on trying to change what you have. (Hence the thighs thing.) Bad move, it won't change anything except that you'll continue to be dissatisfied, and she'll be scarred, in more ways than one.

You've thought about leaving because you know you're not being honest with yourself and her. Think about this - you will never meet the person with whom you crave the connection that you seek whilst you're with her.

I do appreciate that it will be hard for both of you, but isn't being honest the honorable thing to do?

Wouldn't it be better to change yourself, instead of her?

Most times when people try to change others it never ends.

Today the thighs, tomorrow the breast to match the thighs, come on, love the person and the body doesn't matter.

At least you're being honest about your feelings. It's obvious that you're still hung up on your past relationship. I'm not sure if you still love your ex or if you miss the love that you and she once shared, which seems to be lacking in your current relationship. I think it's obvious what you should do. In the long run, you'll do your girlfriend a favor by breaking up with her now because she deserves someone who will love her for better or worse. You can find any excuse and flaw, but it all boils down to you not being happy in your current relationship. Good luck to you and I hope you find what you're looking for.