Am I heading for a bad ending by dating a good friend of my ex?

Dating a good friend of one of my exes. My ex and I broke up a couple of years ago and he has been with somebody else ever since. However, I recently heard he still has feelings for me but I have no feelings for him whatsoever. The friend I’m dating decided to tell him that we’ve been going out so we didn’t hear from somebody else and leaders to say he was very unhappy. He also told the man that how horrible I was how he didn’t have enough money for me how I checked his credit have I cheated on him all the time etc. of course most if not all of this was just completely untrue. I broke up with him because he kept on lying to me and refused to live within his financial means which scared me because he wanted to live with me. In any event I’m willing to move forward and so is the new person I’m seeing that I feel guilty that he has lost this friendship as well as a mutual friend of theirs who is taking my exes side. I also was told today to “be careful“ with the new guy. This came from somebody that I ran into having nothing to do with my ex. It was it’s a small town a lot of people know each other person but I’ve known this other guy for almost 8 years and while I don’t know all his personal matters, I do know he’s been married and divorced a few times he has two gray is two grown children. At some point in the near future I will approach him and ask him if there’s something I need to know because frankly my age parentheses I’m already in my 60s, the last thing I want is drama or problems. It is all of this paint a bad picture or should I just continue to see how things evolve?

You really shouldn't date an ex's close friend. Someone is going to lose a friend or maybe everyone. And you already found out the other reason why: The ex is going to unload on him about you. Relatives and friends will be forced to choose a side. It is drama and just not worth it.

You have just put the friend in a position where he is going to have to choose between you and his buddy. It's quite possible he has already destroyed his friendship. At the very least he should have checked with his buddy before dating you. Bro code applies here, and he screwed up big time.