Going crazy

Dear All, I have got into a mess and can't get out of it I need some advice please. Basically I have ended up in an online relationship with someone who is 15 years younger than me , I am married with kids , in an unhappy marriage and live a very stressful life for various reasons. I think it was a form of escape to start chatting to people online and find friendship I was not looking for anything else. However this one person we click on so many levels and he is now wanting things to go further as apparently he has fallen in love with me, I have basically got caught up in it , been happy for the first time in a long time, but now I have a major problem because he doesnt know my age ( never asked) or home situation ( never asked) but equally I never volunteered anything. I don't want to let him go but I know that is what I must do but how ? how do you loose something so wonderful and potentially happiness making? I know I am totally in the wrong here but what do I do and how do I do it? it's got to the point where I feel like i am depressed tbh Top

It is just an illusion. are you a woman in love with 15 years younger man? I wouldn't trust him, he is just after sex experience. Be strong and clear your head. Don't ruin your life