Thank you! I was afraid I sounded flip. (and I am one to chicken out, even on dates I make for myself solo)
I think too, that people aren't usually offended when it is clear that it's your feeling and your need to feel comfortable and have an OK time with a friendly acquaintance if possible. (?could he have become agoraphobic?)---you also mention 'boring'---that can add to restlessness, and also a feeling that you don't really "know" the other person in a way..... Let us know how it goes!