First of all, your mum rocks!
and nextly, IMO, any two people can make friendship work, (hell, any two living beings can, for that matter) if and only if they work on it! by that i mean, Both of them would have to let go of little things that he's been holding onto, and meeting in the middle. only you trying to mend it will only result in you resenting yourself!
Ah yeah! So true! but, I say that since you did say that you've tried to NOT mention that part with him, so basically, just pretending that the 'elephant' is not there just because you didn have a relationship at that moment!
At the risk of sounding harsh, Carl, I'd ditto that!
and, Ditto THAT too!
wow, Lookie here, i didnt even have to write anything! its mostly all been said already.
Now, having said all that, All the best! Just make sure whatever you choose to do, you DO think of yourself, as well!