It's not a movie, but a game that makes me beside myself; The game Vampyr. You play as an ex-soldier/surgeon named Johnathan and in the beginning of the game you turn into a strong and epic vampire! There's alot of choices you can make to increase or decrease morality via killing or not killing humans around you. Everyone is accessible to you except for, of course, the love interest. She just so happens to be a vampire as well and I don't have a problem with your character falling in love with another... it's just that you don't get to decide your interactions with her. The main character will always swoon for her and it doesn't feel like I am actually in control of my choices, unlike with everything else in the game. It's frustrating and the game is older(ish) so the potential for another game is low. It's really unfortunate because it is such a good game. I really hate forced romance plots...