I laughed when I read the title to this one but I hope it helps someone. At least its cheaper than the Women's Weekly divorce magazine I saw on my local newsagent's shelf.
https://www.udemy.com/make-your-relationship-last-forever-pr…
By request, no code needed:
https://www.udemy.com/succeed-in-online-dating/
Is there a course to get a relationship in the first place?