I won! I definitely won.
You won the battle, darling, but I won the war. Who’s childish now, hmm?
Utilizing new additions to one’s vocabulary is not childish. I simply made use of all the items in my arsenal in order to best you.

You are impossible, and I love you.
Second to you, of course. Oh, why thank you my beloved, darling sister. I knew you would see reason.