After college, my friends started getting married, then having children. Despite my best efforts, and as someone said earlier, singles and couples don't mix well. My friends basically put our relationship on "hold" for twenty years so I learned to do without them. They're children are now grown and they're reaching out. That's fine but it will be on my terms (guess that's resentment; will have to work on getting rid of it; that's not usually me).
Now, after all those years of being alone, I've met someone. We do very well together but we've found we each need our Saturday to get our own stuff done. He goes off to work on his kid's house and, I go to breakfast at a place where they know me, won't rush me, while I read my book. It's my re-charge time from work and everything else.
There's nothing wrong with being a homebody along, again, as someone said, it's not depression. Face it, that big world out there takes energy and isn't always the friendliest place!