At the age of 22 years old both Temperance and Seeley graduated college. Temperance wasn't ready to graduate because that would mean Seeley had to start working for the army and that would mean deployments and she wasn't ready for those.

(Skipping the graduation ceremony because those are boring to sit through.)

Seeley's family was taking pictures of the young couple. Temperance was wearing a burgundy dress with high heels. Seeley was wearing his dress uniform.

Seeley hot down on one knee and pulled out a small box.

Temperance Brennan you are the love of my life and I want to spend the rest of my life with you. Will you marry me? Seeley asked
Yes I'll marry you. Temperance said
Seeley slipped the ring on her hand and then he kissed her.
I love you Mrs. Soon-to-be-wife. Seeley said
I love you too Mr. Soon-to-be-husband. Temperance said

Temperance's graduation dress

Seeley's dress blues (don't mind the placing he is at in the photo)