Oh no, that doesn't offend me at all! He's supposed to be disliked by you at this point in the story so it's good you feel that way.
"Where's Alon" works on Android too, yes! I tested on my small phone screen and it was fine for me. If you don't find him, don't worry about that. He doesn't give you anything at this moment but just the satisfaction of finding him :D Although right now I'm coding in that finding him unlocks some stuff in the gallery so you may want to go and track him down next month ;)
Cooper will unfortunately not be dateable. :( He is already taken... by his devotion to his duty!