Might be a set up, If you're going there just don't go alone, or just find a way to make sure everything's ok and nothing's fishy going on.
I'm gonna go ahead and second this. It seems pretty creepy if you don't know who this person is and they're this into competing with you.
Thats what I was thinking 42, I don't mind a friendly spar but I just don't fully trust him.
King this is a DANGEROUS road you are driving on,so stay out of this creeps way,don't let words rule your mind forget about him,and by the way if you have not seen him in a long while and you were his mentor,where has he been and where have you been for this Mexican stand-off,i repeat, i reccomend you stay away full stop,even if you did spar with him and won,YOU would only make matters worse,either way its a catch 22 situation.
This creep is out to get you, going by what you have said,the only way is AVOID.end of story.GOOD LUCK with this c-rap you have on your hands.