I was married for 25 years with 10 kids, when my ex decided she would rather sleep with other guys (well it was probably earlier when that started).
I had all the kids with me with no help from her, until I decided to move out to AZ to help with my mom. Gave the kids still at home the choice at that time whether to move with me or go to Indiana and live with their mom. Only one of the four left went with me.
Personally wasn't thinking about dating or getting remarried, but hated being in the house all the time, so I joined a meetup group that went out to listen to live music and dancing. Spent months just dancing with multiple ladies most Fridays and Saturdays not even thinking about dating. Then boom, I met my current wife. Been great ever since.
It was funny, her 2 boys were concerned that I was taking advantage of a rich recent widow and their mother didn't know what she was doing. They have since come around, they at least tolerate me now. Her only fault is she is from Boston and an extreme Patriots' fan. I do give her credit she was a long time season ticket holder before the Brady-Belichek era.