Also if you're going to have a 2-month contract relationship, wouldn't it make sense for the relationship to be a secret? The day after they agreed to date, they got found out by a love rival and Sa-hee told her best friend. If you're committed to breaking up after those 2-months, why spread the news about your relationship with your boss? Of course, Ji-Hyuk's mom finds out and just like in her previous life, the mom does not support the relationship and wants them to break up. I honestly don't know how they got married previously, because for some reason, in both lives, Sa-hee feels this compulsion to do as his mom says. In this 2nd chance at life, she considers clinging to Ji-Hyuk for like a brief second but then folds under the pressure and her fear. Again, why even restart the relationship if you aren't ready to fight for him? Another thing that drove me crazy is Sa-hee's low tolerance for alcohol. She knew she couldn't drink much and yet, she always drank past her limit and wound up in avoidable situations. For ex. her love rival got her drunk and was able to get Ji-Hyuk's secret home address from her due to her inebriation.

Then they were in a car crash, which scares Sa-hee who believes it was a warning for her, so she becomes recommitted to pushing Ji-Hyuk on to someone else and breaks up with him. After Sa-hee sort of tries to commit s*icide in HIS bathtub (even though she has her own home), thinking the powers that be would make her wish of Ji-Hyuk falling in love with someone new come true, Ji-Hyuk saves her and agrees to move on. Fast forward, we find out that he too was sent from the future and they both decide to not let fear get in the way of their 2nd chance at happiness.