Did my boyfriend cheat while I was away???

When I went out of town it was hard for me to get in touch with my boyfriend I was a nervous wreck...given the fact that we have already been having problems with me finding girls numbers in his phone. Last night he told me he was at a strip club the night I couldn't get in touch with him and the other nights he was asleep...is it just me or does this sound like a total crock of bull?