I hate having sex with my wife

My wife is a great girl, she's 26 and I'm 28. We've been together for more than 8 years and married for 4, she's the love of my life.<br><br>Two years ago she gained some weight(like 35lbs) but it didn't bother me that much, i love her for better or worse, she's still the woman of my dreams, i love her to death.<br><br>The problem is that now i feel like i'm breaking in half every time we do it, because of her weight, i literally have to push with all my strength to make it work and even then it hurts like hell, we've tried different positions, including the one where i'm sitting down and she's on top but none of them seems to work.<br><br>I've told her to get a air lock or something to make it easier but she doesn't like it because "it's not natural", she doesn't want to have sex in the first place because she knows that she's not the "hot girl" she used to be.<br><br>I'm not a monster, she's always beautiful to me but it's becoming hard to keep having sex with the pain, she's not willing to work out or get therapy, i haven't told her that it hurts because i don't want to offend her with that, she's been depressed for the last two years and when i talked to her about it, she always tells me that she's going to start a diet, but she never does.<br><br>I have to do something but i don't want to hurt her, she's the love of my life and i don't want to leave her but we're married, we're supposed to have a normal relationship.<br><br>EDIT: Wow, i didn't expect this much response, thank you all for your comments and suggestions, i'm going to talk to her tonight and maybe we'll go together to therapy, and i'll talk to her about avoiding sugar and carbs. I'll also suggest to start an exercise routine with swimming or something like that, and maybe some pelvic exercises for her.<br><br>Thank you all again, for caring, this is a big step for us as a couple, and it's thanks to the great advice that you all gave me.