Im terrible at trying to make the effort, not because Im not bothered, or am busy, Im just a bit socially awkward - I never know if the other person will like what Im suggesting so I don't bother! I guess I still fear a bit of rejection but there's something more to it than that.

Other people are in better positions to invite me instead, because they have the houses. I also find that other people have busier schedules so when I do ask, they usually say no because they're busy. So I end up waiting for them.