Am I wrong for being mad?

Never see my boyfriend because he works away from home all week. So on the weekends it should be time for us to spend together. I had surgery Monday so I’ve been in bed most of the week and today it was a beautiful day and he promised we would do something with our son right after he went to help his step dad (he said he would be home after an hour, and I don’t know why he goes to help his step dad because his step dad is an asshole to him and only uses my boyfriend when it’s convenient to him. Plus I won’t go with because his step dad is always touching my boobs or butt and being sexual with me and it makes me very uncomfortable.) anyways. He’s been gone for almost 4 hours and it’s now 3. I’ve been alone all day and he still isn’t on his way home. I’m hurt that he would rather spend the day with him than me, and he also has my son with because I can’t pick him up since I had surgery so I’m just alone.