Baby weight...

Ugh I am just so unhappy and uncomfortable with where I am 1 year after giving birth. Especially since stopping breastfeeding at 9 months my weight has just been increasing no matter what I do. Nothing I own fits right anymore. It’s causing strain on my relationship. I don’t know what to do. I’m going to talk to a personal trainer but if that doesn’t work out I don’t know what I’m gonna do. He has gained weight since I met him and continues to buy better fitting clothes but anytime I want to buy something her gives me crap and tells me to just go work out and I’ll get back to where I used to be. Like it’s not that fucking simple and why do I have to work it off but he doesn’t?!? Fuuuuuck!