@lawdawg I have to agree with them. I've seen men do this way too often. I know your heart doesn't want to believe it but I think it would be best to look at this situation from a logical standpoint if you can. How long have you really known this man? Things may feel great with your relationship now, but will you still be able to trust him down the road? He's okay with lying to his wife and kids. Who's to say that, when you both have disagreements in the future and he's unhappy with you, he won't go looking elsewhere? I know these aren't fun possibilities to consider but I really think you should. Your friends sense the danger after all and they are going to be considering the situation with a clear head.
My advice? Find a man (or woman) who isn't attached. This Virgo isn't the only fish in the sea. You never know; there could be someone out there that's even more perfect for you! ...And less likely to cheat on you too.
Wishing you the best of luck.