i used always say that the person isnt marrying the family, they are marrying the individual (when i was a teen…) however the truth is that the home they come from DOES effect them, even if it doesn’t surface riight then. it can come up later on in life.
With divorce you must check out well how it effected the kids. Thats not to say that if a couple is still married but has terrible shalom bayis, go for it. Most often these situations have deep effects on the children.