I think the discussion of whether or not you should have watched the movie is really valuable. It's a tricky situation--on one hand, by watching problematic media, even to criticize or understand it, you're propagating that media and paying the creators (perhaps indirectly like with Netflix.)
However, it's also important to understand what we're up against when it comes to creating a well-educated, consent-first, sex-positive world. So I encourage you to watch movies like this when you're interested (only as part of balanced media consumption!), give them a thumbs down and think critically about what you've watched. This is particularly important if you want to do better with your own work. Think about which details contributed to the romanticizing of abuse, whether anything could be easily changed for a healthier portrayal or whether the film would be better off not existing at all, etc. Discuss it with friends and online. Look up reviews.
That said, don't force yourself to watch garbage if you don't have the kind of curiosity that drove you to watch 365 Days when you did. You need to be in the right headspace. Self-care first!