Emotional Affair

So yeah, it's nice to talk to people who won't judge me. Basically I have known this mm for 8 years we have always been close friends but for the past 6 months we fell in love with each other. We spoke everyday and two weeks ago I
Finally told him I loved him back, well he rang me all excited and his wife overheard the conversation. He spoke to me two days later and we both agreed to end it yet last Friday he basically tells me he can't let me go and he loves me and doesn't want to cut me out of his life. I understand you can't turn your feelings off I'm feeling as hurt as him. And it makes it worse because we work together. He's now gone on holiday with his wife giving me time to think. Basically what I am asking is it better to deal with the heartache and cut all ties before we get even more attached. It's a weird relationship there no physical side just talking and seeing each other at work. I
Miss him everyday because I've lost my Lover and best friend. I really don't know what to do I'm torn about ending
It or carrying on and getting hurt again further down the line.