He asked me to spend the night after sex but doesn’t want a relationship?

I’ve been talking to this guy for a while now and he’s told me that due to his dad passing last year it’s mentally messed him up as he discovered his dads body, they were very close. Last night he opened up to me about things and said he doesn’t want anything serious just now and that he has attachment issues and struggles to get close to others and that it’s gonna take ‘someone special’ to change that. We had sex last night and he kept asking me to stay the night, I found this a bit weird, 

why would a guy ask you to stay the night if he has no intentions of being serious with you?? 

He also said ‘the best part of sex is waking up next to the person in the morning’ he had a drink in him last night and I asked him today if he meant what he said about staying, he said yeah he wanted sex in the morning so I replied ‘what if I didn’t want to’ and he said ‘if you didn’t want to would of meant that you still had someone to cuddle up to during the night’ he’s been messaging me all day but it’s mainly been sexual. 

My question is, if a guy doesn’t want to be serious then why ask me to stay the night and why open up to me then message me all day today? I feel like he ain’t sure what he wants I’m just confused as to where I stand?