give in

You consider Mrs. Anderson's offer for a good long time as she patiently waits for you. You've been fighting this every step of the way, but as you consider all the things that have happened to you in the last couple of days, you conclude that maybe you'd be happy being a girl if you just stopped fighting it.

"All right, Mrs. Anderson," you say. "I'll go with you."

"Excellent choice, Parker," Mrs. Anderson beams at you. "Come along now."