Entertaining film yes, but I'm sorry...(SPOILERS)
that sort of ending is so unbelievable I just couldn't let myself feel emotional about it. I wanted to, yes, but I couldn't let myself because I know how extremely unlikely it is.
First off, they fall back in love almost instantaneously, start holding hands once they meet each other after 5 years. She sees he adopts a boy, then his parents pop in, and then they start holding hands and come full circle and have this moment of realization "This is it, the person I'm going to spend the rest of my life with."
I think many people would agree with me, guys and girls, that at least 99.5% of the time younger guys that fool around or date older/mature women are just looking for flings, for fun, and fulfilling a fantasy. I guarantee you that.
Don't get me wrong, I enjoyed this film. I found the scene where they broke up to be rather moving, and yes, realistic. She even recognized herself how crazy it is to think they could continue with a relationship. That was realistic.
Here's what would have been a much more realistic, yet comfortable ending to be used on this film if they wanted a happy ending: The young guy does in fact meet a nice girl his own age, has that adopted kid, and perhaps the older woman is "happy for him" something like that. I suppose it'd be a cliche, but hey, the ending they used is unrealistic.
Older women and young guys enter a relationship knowing it will end eventually, it won't last. The guy will always want to have kids, and the woman is past that stage esp. if she's already had kids. She just wants to feel young again and have fun.
Believe me, this goes through the head of MANY older women when they date younger guys.