A Mommies-gotta-brag moment

We were at lunch with friends today and Lucy was playing in the play area. She ran out and told me "Mommy, a girl told me she didn't like my outfit and it made me sad." I told her I was sorry her feelings got hurt and suggested she just stay away from the girl. I followed her back into the playroom to check on Penny (and to eavesdrop of course). I saw Lucy go up to the little girl and say "It hurt my feelings when you said you didn't like my clothes" to which the little girl replied "I'm sorry." Lucy asked her if hey could be friends and they went on playing. They were both wi civilized, it surprised me that a couple 4 year olds could behave that way