Ginger...nope not too demanding at all! And zippo to do with 7lbs. No guy would not want to see his girlfriend ALONE before being apart for that long. Priorities...and needs. It is great that you both feel that you love each other incredibly. Thing is you've moved in up in your priority list, but it doesn't sound as though he's done the same for you.
You are expecting the level of attention and commitment from him commisserate with your shared feelings for one another. I totally get the "last hour with my son"...I felt that last night with the last hour I had with D4. As a man that STILL makes me emotional even though we've been doing our custody for 18 months now. BUT he then should have been all for having the 2 hours of alone time with you. Me and new girl are what we are, but one thing that I've loved is how after her kids or my D4 are down, we would make time for ourselves even if we were sneaking around in the house like teenagers. Oh and sex being a bonus...that's a red flag that sounds like you will need further discussion about.
Making you feel awful for wanting to see him...that comment stuck out to me. As KML says, back off now. Time and patience as neffer has said in many threads on here.
Hang in there G! NOTHING you expressed is too demanding. Give him time to process your feelings with his. His focus on his son may contrast with his ability to understand how he can prioritize your relationship more, but he has to do so just as you have done. Give him "some" grace with that. If he's like most men he's super sensitive about being everything for his son and to share his time more with you may cause him to have to deal with some emotions he's not easily able to handle. You deserve what you've asked for. He may need some love and encouragement getting there.