During a game of floget my opponent seemed to get upset because I did not "finish my move" by taking an extra frog. The exchange was as follows:

Opponent: “how come you didn't finish you move on our game i remember you doing this before”

Me: “If you mean why didn't I play I10-I8, you can then play F8- H8- J8- L8-L6 so I get 1 extra point but give you 6. Not a smart exchange”

Opponent: “Oh no your not I'am resighing game & your all done playing with me anymore until i get this straighted out sorry my friend”

My opponent then prevented me sending messages and deleted me from his fellowships.

The rules seem to me to be quite clear, they specifically say you don't have to make multiple moves. I have no history of disputes with this opponent so I don't understand his extreame reaction. Is there something I am missing, or was he just having a bad day?