I need help

So me and my bf been dating 6 months everything been doing great but lately I’ve been feeling distant from him he plays his video game from the time he get off work, he complains a lot to the point it annoys Me but I know he don’t mean any harm and today while in Walmart it’s like he constantly walks away from me when we are in the store and I said something about it and his response was your ass better walk up .he shows me affection but yet I feel so distant from him is it me am I just over reacting I need help