Aww, don't be sad, sure Mika is very kind to people, you can tell he looks much happier with fans than he looks in press photo shots. it'd be nice catch him up off stage, but if you couldn't, still, you can enjoy yourself !
if you feel lonely, do some interesting stuff, be with good friends, have a good laugh, stay away from those boring people, you know their topic usually starts from what you do, your education, your family ... end up with what you will do, tell them shut up
and i don't know how much his autograph and picture means to you all, support is just support if you think he's good, he's great . Mika is on stage, he gives great performance, he enjoys the stage. you pay at the door on your own will, then enjoy the gig as much as you can. when off stage, he comes out seeing fans, he is kind !! if he doesn't, it means nothing really