Sounds like at least he was trying to be considerate, if clueless. Looks like you answered fairly but there are certainly worse folks in the world.
It seems dating and texting is a game I'll never understand
Yeah, for some it's a trip down the rabbit hole. Entire relationships are formed at the tip of your fingers.
I sort of had the same feeling when I was (once) on some sites. When I saw a woman who said her family came first I knew I would always be in 2nd, or 3rd, or 4th place. Also, I may have had a choice in selecting one specific person but had no choice in getting all the relatives. One reason I quite these sites.
"ok thank you for letting me know. I don't mind being your back-up, but just so you know, you will always be my back-up".