SUBREDDIT: r/relationships
TITLE: I [30F] can't stop thinking about cheating on SO [30M] of 4 years, should I break up? [currently living together]
POST: I need advice. I have the urge to sleep with other men. To be clear, I have never cheated and I won't, but it's all I can think about. It's about the third time I get this obsessed in our 4-year relationship. I have started chatting with a man online and I am thinking about flying half way across the world to sleep with him. For the past few days I can't stop thinking about all the ways we would fuck.

My current SO is great, and we get along really well. We don't have sex that much anymore though, I guess we lost the passion. I think that I still love him AND we live together. I feel like a terrible person but I can't shake the urge, and I don't want to hurt him. Anyway I bring this up will hurt his feelings.
TL;DR: 
I feel like cheating and won't, but am wondering if I should break up. I feel terrible about having to hurt him.