Boy issues-.-.-.-.-.-.Help....?

There is this guy lets call him Arnold (lol not really) He is my best guy friend. since 5th grade. He is going out with one of my friends, Macy...yeah lets call her that. and i heard that he was going to dump her. And hee has been acting EXTREMLY nice and sharing lunch with me cause i didn't have money and being abnormal...Does he like me?