If you want my strict opinion, I think it’s a poor decision to choose to wait. There is a lot about yourself, sexually, that you simply aren’t going to know until you’ve experienced it, and that knowledge is going to affect your relationship with your partner or partners. Neither will waiting until marriage ensure that this will be your only partner. You can’t divorce-proof your relationship by waiting, nor does having sex before marriage (or engagement, for that matter) doom things. Plus: waiting until after your break-up requires lawyers is a bad time to find out that the two of you don’t sync sexually.
What I took of it, was this women found a man she was interested in, remained happy with herself so that she could show that to him, and when it became clear he was waffling on children walked away gracefully. Any women will have one conflict with a man, whether it be brattiness, or something else. If there is only one thing about your character you compromise in a relationship that is a good sign. Walking away from a kind, loving, successful, and attractive man, no matter what his age is, is difficult. Good for her, she did it with grace, on a non-negotiable point, and he came back. She allowed him to cherish her, and when she was gone he realized he missed her. This is all very hard, to walk forward, and not know if he will snap back. It is very hard to trust your heart and the process of a man like this falling in love. They won’t gush feeling, they won’t make lots of promises for the future, (because their promises are important and not to be taken lightly) and they have to realize they are in love, which takes time.