The national flag is flying. Who did Ma Bayi marry?

Ma Bayi finally married Lin. With the development of the story, Yang divorced in May. At the end of the story, Lin died of illness and soon died in the line of duty. The last picture of the story is that Yang Amei is standing in the mountains, shouting at Ma Bayi who is patrolling the mountains in the frontier: "Ma Bayi, I am Yang Amei, go to 2 1 division, I will wait for you there, I love you", and Ma Bayi is standing on the top of the mountain waving the national flag. I guess they should be the last family members.

There are all the dramas on the internet. After reading them, I thought about it and understood that none of the four protagonists in this story experimented with bad people, but they did something incorrect under the special background and thought at that time, but at the end of the story, they all saw it and slowly moved towards happiness.