<human>: Can you provide a brief rundown of the text in within 3 sentences?

I'm 27, he's 31.  I'm an introvert and he's an extrovert.  We've been dating for just over 2 years.  We do not live together yet but the plan is when my lease is up in August, I'm moving in with him.  I love him very much and this is the first relationship for me where I see a true future (he feels the same and has told me such).  For the last month he's basically moved into my apartment and I'm freaking out.  I'm feel like I never have any alone time and it's starting to eat at me.  When we first started dating he would go out and about on his own (friends, gym, etc.) but now he wants me to come along on the things he does and if I don't want to he just stays home with me.  I've tried to talk about it but I sense he maybe depressed (stressed out from work) so I want to be supportive.  I guess my actual question is, does this feeling go away?  This is my first serious long term relationship - also the first time I will be living with a SO.
<bot>: does the feeling of smothering go away when you are with someone?  Or, what's the best way to ask for 24 hours of alone time?