One More Time

I'm watching a mini-Kdrama (only 8 episodes) that isn't quite like Groundhog Day (even though it's promoted as such). In addition to the repetition of the same day for one character, we get to see the background/history of both him and his girlfriend and understand why he is repeating the same day. It's all bittersweet. Initially, he leaves her behind but begins to realize how much he loves her.

Will my husband ever have any regrets?
What could I have done to stop him from leaving me? If I could go back, then what could I change? I loved him no matter what - with every cruel thing he said or did, I loved him still. Was I that cruel to him? I've been told by friends and family that I had to have done something to push him away. I'm not the nicest, or talented, or beautiful of people so I guess there wasn't much that I could do to hold on to his love.  I feel so sorry and regretful and I miss him so.