Lose less points in PVP after multiple same attacks

Marvel Puzzle Quest MPQ Suggestions and Feedback
1

If person A wants to attack person B a whole bunch of times, that should be allowed, but person B should lose less and less points. Maybe lose 75 points the first time, then 75/2 points the next time, then 75/3 points etc etc

It can just be very frustrating when you are climbing up, and the same person keeps knocking you back down, time and time again.

We could even have it so that the same person wins less and less points from you for each win.

And it would reset back to the normal amount every time the victim re-shields.

2

How do we balance that against the desire to keep score inflation manageable? If there is just 1 problem player annoying me I can just stay out and climb indefinitely. After he hits me the 10th time I can hit virtually any target and still grow my score faster than they can knock it down.