I was kind of wondering what you are missing.
- Dr. Girl couldn't make the sick guy well.
- Tara gave her a pep talk.
- Dr. Girl still depressed saw Jessie kill the walker in the house (assuming that was from a suicide) and Jessie gives speech.
- Inspired, Dr. Girl goes back reads book again does procedure on sick guy and fixes him.
- Dr. Girl really happy goes and kisses Tara.
I think Dr. Girl is also coming out of the closet. She was afraid of what was happening, afraid she could take the roll of the Dr, and afraid of admitting she was gay. She is overcoming those fears "being afraid sucks"
Edit: I think last nights episode was a lot about the citizens of Alexandria wanting to live and changing their attitudes of what they need to do. One who didn't want to live committed suicide, another who thinks its all over raided the food pantry.