There’s a guy I have known for around 10 years through work. He’s married to a great woman and is step-dad to her two kids (10 & 12). There’s always been some chemistry but I have always kept him in check with a very firm boundary (I was also in relationships sometimes during our friendship), as I have no desire to give any signals that I might be interested in being romantically involved with a married man. He’s now told me he really thinks we might have a future. I have told him we may, or we may not, but that he is married to a wonderful woman so there’s absolutely no point in even entertaining any thing further. He said he would leave his wife if I could give him some solid hope that we might be together, as he isn’t going through a difficult divorce if I don’t give him that. Gobsmacked! I thought he was an emotionally and intellectually intelligent man, but really they are all cut from the same cloth and only think about themselves first. AIBU to totally cut him off now? I feel that is the right thing to do but interested in others’ views - would continuing on a flirty friendship continue to give him a green light and feed his ego?