Diane Kruger and Joshua Jackson in Good Spirits After Breakup

Diane Kruger and Joshua Jackson are either doing the conscious uncoupling thing or they're on the road to rekindling their relationship.

The exes looked deep in convo Monday leaving a liquor store in West Hollywood. They were together for a decade before calling things off last month.

Joshua's brown bagging it, so if you're a glass half full person ... they're about to pop the cork and chat over a bottle. Half empty folks will say he's drinking alone, and Diane's just keeping things friendly.