Why did it say I abandoned the game and lost 9 points... ?

... after waiting 5 mins for opponent to make a move?

can anybody tell me why this game was abandoned in my opponents favour? I was waiting like 5 minutes for THEM to make a move and so decided to send the resign flag emoji to them with a question mark to playfully push them along in their next move since he has in check and didn't have many options to take anyway. 

Then it said I abandoned the game and I don't even know how to abandon a game to be honest. Pretty sure my connection was strong as the clocks were not flashing... 

You apparently got disconnected.

https://support.chess.com/article/213-how-do-i-fix-my-disconnect-lag-issues

Yeah actually it seems they did make the move and it wasn't showing up. Be good to turn on a sound when it disconnects to make it very apparent there is a connection issue...

This just happened to me as well. Lost 2 games in a row when winning. The timer was running on my opponent's clock, but then it said I abandoned the game. If there is a disconnection problem they should be able to tell us.  I find this to be a big issue with Chess.com, I think

They will tell you if there is an issue. But if you are disconnected HTF do you expect that to happen ?

https://support.chess.com/article/213-how-do-i-fix-my-disconnect-lag-issues

Try clearing browser etc, see if that helps 

Hi

just happened to me also. Everything looked ok. Clocks running then up popsthe message "Balck won by abandonment" I was still playing!!

Very annoying indeed.