Which episode is the swallow eating vinegar?

The swallow is jealous.

After they finished, the lotus pickers followed, saying that they were Yongqi's people from now on. They helped her bury her father. When they rode on the road, the lotus pickers followed. Yongqi saw that her feet were worn out and the swallow was very uncomfortable.

Swallow wanted to get off and ride, so she rode away. Yongqi asked Benmingjie to chase the swallows, but she still followed Yongqi when picking lotus.

The swallow was jealous and ran away. Yongqi chased the swallow to the river. Yongqi said that swallows are puzzling. The swallow asked Yongqi to leave, and they had a quarrel.

Swallows don't eat with a straight face when eating. Yongqi helps the swallow get food, but the swallow doesn't want it. Yongqi was angry and deliberately sent rice to lotus picking.

Swallow doesn't eat, class comes to accompany her, class helps Yongqi talk, Swallow asks class if he doesn't like himself at all, and Class says Swallow is jealous, and she cares about Yongqi.

Ben Ming Jie said something to Swallow and asked Swallow to go back with him. Swallow came back, Wei Zi asked her what Benmingjie told her, and Wei Zi said that picking lotus was sent away.

In the evening, the swallow was hungry and came to the kitchen to look for food. He was about to eat steamed bread when Yongqi took it away. Yongqi made her noodles. This is his first time cooking. Yongqi pretended to be delicious, but she didn't know it was delicious until she tasted it. Yongqi refused to let the swallow eat, so she took it away. After Yongqi kissed the swallow, Benmingjie saw it.