should i answer?

ok i'm talking to this guy whose away at college and idk if im being paranoid or what but he's drinking every night cuz its rush week and its just stressing me out. he didn't text me all day yesterday then at night texted me a few times, said he was gonna call em, and then a few minutes later he said its ok he will just talk to me tomorrow, i haven't replied to any of his texts from yesterday. i am honestly waiting for a text today bc i wanna see if he really cares enough to get nervous loosing me. or should i just answer?