why don't you ask him to fix your bike? or... take it to the shop and have THEM fix it. why let a mechanical ruin your day/date?

whenever my DH is passed by someone he thinks he could pass, it drives him crazy. Sometimes when he's riding with me, I'll say go ahead.. and he'll take off and do his testosterone thing
and get it out of his system... and then he comes back. (this doesn't happen often, but it DOES happen) so perhaps your DH IS jealous because HE really can't keep up with those dudes anymore!