My biggest temptation to eat is to not lose gym gains, what do?

So I started plateauing a couple weeks ago, and I've gained a quarter pound the last two weeks. I knew it was happening, but I couldn't stop going over my tdee because I didn't wanted to "waste" my gym gains.

My back, ass, legs and chest especially are looking solid, thick, tight, but I know I still need to lose weight. It's inefficient to put on mass at my body fat levels.

How do you console yourself with letting go of gains when you try to lose weight?