Am newly frnds with a guy i met thru my roomate.he askd me to hangout with him not invitin her,my roomie doesn?

I've hangd out with this guy b4,his my frnd bt am getin to 'like' him.am sho we both hd fun hangin out cz he made plans 4 the nxt meet which i sorta turnd down cz cdnt mek it.since then,he neva talkd 2 me,its bin a week.i txtd him,he neva replied.days later,which was yest,i cald him briefly,he sed he was ok bt sounded pisd at me.shd i ask him 2 hangout or that wil mek me apear desperate?maybe he jus lost interest in me,i dont want to mek a fool of myself.:-s