Why did Alan and Walden get married?

Related questions

1. How did Charlie Harper die?
2. How old was Oona Chaplin when she married?
3. Is Oona Chaplin related to Charlie Chaplin?
4. How did Charlie Sheen's character die?
5. Does Charlie marry Rose?

Tags

1. #going
2. #played
3. #running
4. #sitcom
5. #proposing
6. #cryer
7. #ashton
8. #walden
9. #farewell
10. #premiering
11. #child
12. #couple
13. #kutcher
14. #adopt
15. #greater
16. #married
17. #marriage