I've been in my current job nearly a year now and it's the first job I've had that I quite enjoy and I'm good at. I'm working on a project and work very closely with a guy in my office, we get on really well and he's been really supportive. Unfortunately he's married and I'm totally falling for him, he's confided in me that he's having issues at home. It's awful but I can't stop thinking about him and on Friday night we were texting for two hours. Things are ramping up and I can see what could happen, I try to focus on his wife and child but it's difficult because we have so much chemistry. I've also recently had issues with my boss and I applied for a new job which I have been offered. He's really upset that I'm leaving but I think it's best for both of us. He doesn't know I'm leaving in part because of how I feel about him.
Obviously I can't talk about this in real life and it's breaking my heart that I've fallen for someone who is unavailable. I'm not an evil person and don't want to be responsible for breaking a family up. Can anyone offer advice on getting over this? Before this happened I would have been really judgemental and now I'm in it and I feel wretched. Please don't flame me for this.
I'm not going to have a leaving do which will limit any further opportunities to see each other.