Leave her. Don't play games cheating though you are probably thinking that cheating will make her mad & want to leave you so you don't have to be the one who leaves her.

That is still messy. Just be HONEST. You might as well end the relationship with honesty rather than leaving her wonder why you cheated.

Yes, yiu can say you love someone just because yiu are in a relatiknship & feel you should say it. Honestly if she is not feeling intimate toward you & this has been going on for some time.....there is probably a real reaon on her part & maybe she just doesn't know how to express what is bothering her. I have been there done that too in my marriage. It NEVER got better either but I don't believe in cheating. Either break it off or live with it.