Wow... This sucks.

Is there anything you can do to share intimacy together? It doesn't have to be intercourse if intercourse is uncomfortable. It can be oral or manual sex, laying naked together and watching a movie with her touching you and you caressing her.

If you are committed to this marriage, then this is it, for you and for her... You are each the last person the other one will have sex with. I hope you can find some way to share this intimacy with each other.