My boyfriend stay up all night while I am sleeping instead of sleeping with me and plays video games, watches tv, and occasionally watches porn.. Am i overreacting or does this need to stop?

No! Your not overreacting atall.
Watches porn? If I was you I would put a stop to that right now!
But like playing video games& watching dvd's maybe suggest going to bed together, to watch a film together in bed? Just talk to him, if it still don't stop or nothing changes, tell him how you really feel! Hope this helps!(:

My bf is 25 and does this. He is mostly a PC gamer but he will spend hours on there playing Starcraft II or WoW or LoL or HoN and believe me the list goes on and on. When he doesn't have work the next day he likes to stay up till 5 in the morning gaming and the he complains that he can't get to sleep when he does have work in the morning. I've talked to him about it and berated him many times but he still does it. Even when he has work the next morning he likes to watch tv in bed until he falls asleep and of course I can't sleep with the tv on so I don't get to sleep till long after I wanted to. What pisses me off even more is when he has spent all night on the computer and then the first thing he does in the morning when he gets up is go back on it. A lot of his friends are worse than him too. They play all night every night. And yes, my bf still lives with his parents and wants to move out into the apartment with his gamer buddies. Anyway, just saying, I agree with you boys can be such douche bags. He will never be a man to me unless he grows up.

No this needs to stop if he has a girlfriend and is watching porn he needs some help like pronto.

You are not overreacting it needs 2 stop!!! I see every now and then but not all the time.