Scott2mee: I have a marker next to my name showing I don't finish rounds.
That's the intention on the colored/coloured check mark, as I understand it. It's not saying a player is a quitter as much as it says that "a player doesn't finish rounds".
When I do play rounds with "non-friends", I take that into consideration. Either I play or I don't, but it's never thinking that a player is a quitter, it's just if a player is more likely to finish a round or not.
Once you get your connection corrected, do as has been said and play a bunch of Blitz rounds until you get the green check mark again.
Happy hitting