Hey, who knows? We may yet see that lovely $1-a-gallon gas that the Shrub opined we'd get after "liberation".
Anyway the solution to your problem is to do a longish run BEFORE you run with your pal. Either that, or do road intervals while running wit him where you say from time to time
"I didn't do my speedwork for this week, so I'm going to do a few really fast pickups, run ahead for a bit, then come back to you, OK? This pace is perfect interval recovery tempo and you're helping me a lot by running with me...thanks (offer a big smile)."
If that doesn't do it, MOVE to a different neighborhood.