@Crazielady420,
Wondering is perfectly okay, just don't live in it.
Instead look at the great wonderful life you do have.
Every so often I wonder what would have happened if I'd headed off and become a minister as I considered a choice back when I was in my teen years. I'm rather certain life would have been different. That doesn't mean better or worse, just different. That wasn't my path; took a different one and for the most part it's been fine. No time or energy for regrets about what might have been if I'd done things in an entirely other manner.
Perhaps life would have been drastically apart from where it is now if I had taken violin lessons seriously or if I'd walked off with that man at the Port Authority Bus Terminal when I was 14 or 15 (like I might be dead), or if I'd followed up with Ralph and gone to Rome or some other place.
Life gives us options, we make a choice and it gives us experiences which speaking for myself, I wouldn't trade away for anything, not for anything.
So, look at him leave, shed a tear or two if you want, because he was a part of your life; then take down the soup pot and make some borscht. Slice some onions so you can cry without feeling awkward. Clean your home from top to bottom....if it's already clean, give it an extra clean. Repaint a room. Write a short story or start a novel or even read a book. Wonder, nod your head, let out a small laugh and know you've done good and done right and are in a good place.