If a mate had the chance to date an ex of mine, i’d like him to at least let me know so i can warn him of any head messing talents she may have, and of course if she was just the wrong one for me, then what a great girl she is and advise how to treat her to avoid perhaps mistakes i made.
Also to have a mate fancy an ex, reassures us that we weren’t with an unattractive one, that is a good thing. In the case of the most recent mates ex, thats a year old and as others have said, he’s moved on, but i think you should at least let him know you’ve become friends with her and would wish to she her some more.
Only you know how much of a mate he is, and whether you value your friendship with him enough to challenge his emotions, tell him, but don’t ask permission, it’s not like that. I’m quite sure he’ll be fine about it, maybe he’ll try to put you off if he thinks she’ll not be good for you, or tell you to enjoy her.
What may become an issue is if you were to get together and a chance of her and her ex(your mate) meeting again in a group(non sexual)way, how tense things could get between an ex and his present GF.
But to be fair, that’s not your problem, YOUR happiness is the most important factor here, so if he’s any kind of mate he will be happy for you.
Mark, put yourself first and do what you wish to make YOU happy and to have fun, if people see you happy, ultimately people who matter in your life most will also be happy.
Enjoy!
Sharki.