My husband cheated.. & I need support

Ok, I didn't really know what to title this. But my husband cheated back in February I found out in March. It wasn't anything physical, it was more so a emotional affair type of thing if you even want to call it that. They only talked for a week, which he proved, so it was short lived, but that's no excuse to make it ok.

Anyways we have been trying to fix us, and find our connection again. Which it has been working, but then it's like I get in these random moods where I'm not ok all over again. I've came to conclusion that it's more within myself and not so much US. if that makes sense. Like he's doing better, he's showing me the man I fell in love with all over again if not more. But now it's like I'm personally just insecure. I hate to admit it, but I'm constantly looking at the other girls Facebook, and I question everything about myself.

What does she have that I don't, does my husband think she's more attractive, she's young, she's living life, does he wish he had that. You know I'm playing those kind of mind games.

I feel worthless, I've been a sahm for 5 years. I don't have much going for me besides wiping butt, making bottles, and being a snack b*ch lol. My body has changed, I don't even know who I am anymore. I feel dead. I feel like I have no life in me.

I'm sure I have some depression at this point. But I don't know how to talk to my husband either so I'm bottling a lot of things up. I know that's not healthy, but I've just always been the type to get over things myself, and right now, this just seems like I'll never get over without doing more harm to myself than anything. And I mean that emotionally not physically.

I've talked to my husband about going to therapy and he's against it only for the fact that everyone we know who went through it ended up in a divorce, which is true so he's not lying there. But now I'm thinking I need to go for myself, but I'm just not sure.

I need to talk to other women who have been in my situation. We've kept this cheating thing between my husband and I, so no one knows. I haven't been able to just let it out.