That's what I think too. She looks her age in normal photos but when she's all glammed up in photos, she does look a bit older. Re why he can't resist pretty girls, everyone has issues and I'm sure he's no different. We just don't see them in him because he's so private. I know he talks about his OCD but he may have other issues we don't know about.
Okay somebody's going to jump on me about this comment. I'm not saying that not being able to resist pretty girls is a disease or something.....but like maybe he doesn't think he's good looking or has low self-esteem or something like that so he surrounds himself with beautiful women to make himself feel better. Hopefully this makes sense. And let me just clarify that there may not even me any reason but that he likes hot girls and since he's Leo DiCaprio who's hot and rich, he can get them!!!!