Ten days is great! Keep strong.
Originally Posted by
steve202020 
Does anyone have any advice for me about what to do about my old drinking friend coming back though? I feel like it will upset him if I'm not drinking and it's also really tempting to drink with him because we have had so many good sessions in the past.......
You tell him you've quit drinking, and as much as you would like to see him and catch up--no drinking. If he's upset, that's his problem.
Or, if you want to leave the door open to drinking, you can say nothing, wait until he gets back, and see if he twists your arm into drinking with him.