I want to be inseparable with my boyfriend?

I am in a very serious and fast moving relationship of 9mths. We are already talking about moving in together and marriage and children etc. However he still lives with his parents at the moment and his priorities seem to lie with them more than they do me. Maybe I am just being selfish but take this for instance he took a week off work and could only see me for 5 out of 7 days of it because he said that he had things to do around the house like helping his Dad out with abit of decorating and bits and pieces for himself that need to be caught up on. I was abit disapointed really because as it is his first whole week off work since we have been together I would have expected that he would have wanted to spend the whole time with me. I am a Mum with children and would have to part company every day at 2.30pm anyway as it is mad that time of day. His parents are quite pushy and expect that he helps them with everything from decorating to their paperwork for their business. I can see there being problems if we move in together. Am I being an immature selfish idiot? All I want is a guy to want to be with me every second of the day is this totally impossible? He is getting moaned at by his parents and me all the time.