LDS / Cristian married ladies : PLEASE help a sister out!

I’m lost, and really need advice.

I believe marriage is forever, but I’m really considering divorce after 15 years of marriage.

I got married with a guy from the same faith I have. He was know for dating and kissing A LOT on his youth, but was very active in our church now, had served a great mission for 2 years for our church, and it was so faithful. He promised that his ladies days here over, that his family was not really active during youth but he went to church by himself, did seminary and was a changed man. He told me that he had kissed a lot but never more than that.

I came from a family VERY faithful, play in church every Sunday, serve in all I can. I had never even kiss a boy before marriage, where non modest clothes, drink, smoke, etc.

2 years after we got married I found out he had cheated on me ( kissing) 2 different girls when we were engaged. It hurts, but we are married now, that was before marriage, so I stay.

After 13 (!!!) years of marriage and 3 amazing kids, my wonderful husband start to change. Cursing when mad, going to small parties when traveling for work, lying for small/medium stuff.

I confronted him, and the true comes out: he does NOT believe in God anymore. He is a atheist! Like, WHAT?!? 3 kids baptized by him!

I get a little desperate, and try to find out how to help. Talking with a close friend of him that end up marrying a ex-girlfriend from my husband, I find out after 13 years that he was NOT A VIRGIN, that he had slept and/or masturbate with 3 other girls.

My world falls apart. I gave EVERYTHING for this man. He tells me that he lied to me because his church leaders tells him too, after a big repentance process. That he does not believe anymore, but that I could raise our kids in church, and he would support that. Once again, dying inside, I stay and try to make it work.

That was 2 years ago. Now he HATES our church, don’t support me AT ALL, and would like the kids ( and me) to stop to attend). He is hard working, and overall a nice dad and husband. But the pain from the cheating when engage and lack of him being virgin and all the lies are still here. I still cry a lot. And his atheism is killing our family. He changed a lot too, and now money and his non member family and money/work are his priorities.

I’m lost, holding on my faith and Lord, but don’t know what to do. We fight so much, it’s so bad. The kids don’t deserve that. They don’t deserve a broke family either. What do I do?