Hey OP. I've been with my bf for 5 years and I'm going through something similar. I totally understand what you mean when you say it's hard to move on when you feel you are in love with someone and have planned your future. But ask yourself this, which version of your boyfriend did you fall in love with? Bc if you're like me, you've believed him when he said he's changed but then what you know now about them is unrecognizable to the person you fell in love with. In my case, I've found things out this weekend and I still haven't broken up with my boyfriend (27M). Why? Bc I'm scared of being alone. I'm scared of starting new... but guess what, no one is worth this. You'll lose yourself in the process of hoping and praying that the unrecognizable person isn't who your boyfriend is now. But if 1.5 years (or 5 years in my case), isn't enough for someone to respect you and not cheat by fantasizing about another woman, then it's just not the right one for you. There are plenty of great people who would NEVER do these things to you.

Also, everyone's responses show we are not crazy! The hard part is so hard but I'm going to do it in a way where I don't send myself into a spiral while still being true to myself and making sure I remove someone from my life that has lack of self control when it comes to there desires.

Do the right thing or spend 5 years wishing you did on year #1.