Long time listener, first time poster .
Listen. I know that tier I guy dinged you for 10 or 15 damage. You rolled over and so did he/she and it's turning into a dogfight that may last. But as you're rolling you see another, then a couple more, enemy planes, all within 2000' and you know your adversary is still banking hard.
Don't stay with the guy. Stay twitchy, yes, because he may fixate on you, but take some pot shots on those others in your area, especially if it involves turning to engage or allows for some braking/engine cooldown or, morst importantly, will bail a teammates [edited]outta the fire. Bring the guy into the furball and, who knows, maybe turf or circumstance will eliminate the threat.