What have you done with Don Lothario?

He's one of my favorite premades. I never cared for him until I played his character to complete the serial romantic aspiration. After he got it completed I decided to continue playing with him because it was so much fun. I gave him new goal, to impregnate all the possible premades and townies. It was great until half of his children got culled (it was back when I had no idea that it can happen). I got so upset that I deleted that save.
I got very attached to his character and nowadays I usually use him as a friend (or a "friend with benefits") to my Sims on most of my saves. I've also decided that when I will get my 100 baby challenge ready I'm gonna do a male version of it with Don. This time I will make sure that his children aren't going to disappear.