I actually saw lot of people like her,
when I watched her in Happy together Secret episode, she stated that even if she said she wants a diamond to be proposed, she just want to get proposed, whether it involved diamond or not.
I feel like she's ready to settled down but if 10 years can't make it, she probably just give up and then bam she meets the other guy. who wants her, clicked with her and proposed.
also his boyfriend had new gf earlier than her,
maybe they both realize it will not work out, they both spend 10 years for each other and that quite sad imo.

IDK maybe she knew he was the right guy?

When people date too long, they already know what they want and what kind of person is the right one.

So she didn't let the chance pass away

Plus, I read a interview that Ji Sung said "good news are coming"

Though she was pregnant, but don't think so since she is doing a new drama!

Well like the other posters have said she was looking for someone to settle down with, her past relationship of 10 years wasn't going anywhere as both had different aspirations, HJE has always made it clear in her past interviews that she wanted to marry soon, it looks like her boyfriend still wasn't sure about that so they decided to break up, as soon as they broke up they both started dating someone else, HJE with the golfer and her boyfriend with an actress, then after a few months HJE announced her marriage with the golfer, truth be told she got a lot of hate from korean netizens, they were literally harrassing her on the internet calling her a sly fox, all the comments were about how HJE used her boyfriend to climb the ladder of success, apparently her boyfriend used to be in the one of the most popular idol group of Korea named SJ Wannabe, at that time HJE was only known as his girlfriend, so he was the one who introduced her to drama PD's, actors and actresses as he had connections within the industry, so tha's the reason why knetz were hating on her for not being loyal to him, as the hate was not stopping her ex boyfriend decided to come out himself saying he's dating too, it's then the hate started dying down, now knetz were putting her down in different way, he's dating quite a stunner so they are saying she's a goddess compared to HJE and he did well by getting rid of her, i think HJE can never win with these people, she will always be called names.

for me, it's not her nose that bothers me but her chin... ah, i still hope she keeps doing romcoms though.

I'm glad I'm not the only one who thinks that. I seriously cannot stand looking at her face. I started watching a Happy Together episode once where she was on, had to stop it.
So yeah, never going to watch a drama or movie with her... :/