WHY is his dad like this?

My boyfriend (of 5 months)'s father is very..needy I guess you could say or demanding.Boyfriend has been home since mid December(He had to leave college because he couldn't afford to stay another semester).So now he is home till' the Fall when he transfers to a closer college.His dad and step-mom (who raised him since 4 years old) bitterly split-up about 2 months ago.Dad "Supposedly" caught wife cheating with another man,accused dude for stealing wife dude got ticked off and beat the @ out of his dad although wife says a whole different story.I'm NOT taking sides however.Now I don't know if his dad has always been like this but it is becoming to be annoying and boyfriend agrees.Like today for example,we got to hang out for 2 hours..(lame) and we were home alone for about 1 hr,snuggling on the couch and his dad comes home for his lunch break and gripes saying"I'm so @ tired I have been working my @ of today and I need to chill for a while"something like that.Then he was like "Why don't you make your old man some Ramen Noodles.I am hungry and tired as @ and need to get off my feet."My boyfriend was clearly annoyed."Be right back baby,I have to go make my dad lunch"Whilst he was making the noodles,his dad was saying "You need to take out something for dinner tonight we have company coming over." Boyfriend was like "Dad,I have been cooking all week,I want to spend time with my girlfriend right now"considering we hadn't hung out or much less SEEN each other since Christmas! His dad looked at me and said"Alright I understand that being as pretty as she is I would want to spend time with her too" His dad makes him do all or most of the housework.Just yesterday I called him up to see what he ws doing I could clearly hear his dad in the background griping about the house being dirty and stuff,he wasn't happy.Boyfriend was like "Chill out dad!" Dad was like "I don't have TIME to chill out!" blah blah blah"Now I know he is not home ALL the time,he has a lot of friend he hangs out with (he is popular) and some live nearby so they hangout after school lets out.(His friends are still in high school)I found him walking to the convenience store with a group of guys on my way to see if he was home yesterday.He has no vehicle and no license,so he has to depend on his dad to take him over to my house,which he did day after Christmas.I have disabled mom and brother(whom I live with)a car but no gas money and just a permit for now.So it is hard for us to get together.I just HATE having to go so long without seeing him,it kills me and I'm sure it does him too.I rely it is not fair but I know it is hard when you have to depend on everybody else for transportation.Is this just something that goes along with parents splitting up should I give them space or what? I don't want to be a burden..and I don't want to break up with him.