Is He Cheating or am I overreacting?

So my boyfriend and I have been in a long distance relationship for a year. We were childhood friends in Hawaii. I moved to Utah 3 months ago and he moved to Kentucky 6 years ago. it's been good but of course we had are arguments. However he recently went back to Hawaii to visit him mom. However, I waited this whole day to vc him. I work in the next morning, but i want to talk to him. So we finally talked to each other for 20 minutes. he tells me he going to sleep. so I hang up. but I have his password to all his account. so I hacked and it shows that 10 minutes after our talk, he tried to video chat another girl and then I find out that he was out with his "boys". I ask him about it and he lied to me about it. he wont tell me why he called that girl or why he didnt tell me he was going out. if he goes out, I dont care. and I just have an uneasy feeling. is he being sketchy or is it just me ?