Ty Lawson & Ashley King -- Arrest Was a Mistake ... We're Working It Out

Denver Nuggets player Ty Lawson and his girlfriend say their domestic violence arrests this past weekend were a GIANT misunderstanding -- and they're still together.

Ty and "Bad Girls Club" star Ashley King spent 3 days in jail after being arrested Saturday morning for domestic violence, stemming from a fight at Ty's Denver home.

Now sources close to the couple tell TMZ ... they simply had a bad night and the arrest was a misunderstanding. They are back at home, still together and focused on moving forward.

Ty and Ashley are due back in court Friday for their arraignment -- when they're hoping to put the entire case behind them.