Where can I find these?! - Check the comments to find things on the web when there's no link! If you save this picture to your computer and go to google images you can find them. Click the camera at the end of the search bar and it will let you upload the picture! It finds matches on websites for you!
They dated for 15 years before getting married, I love that! I wouldn't wait that long, but I do think people should wait longer than one, two or three years before even getting engaged. And I personally think they should be engaged for more than a year, live together before being engaged also. Really get to know each other, love each other's flaws, work on who you are as a person (it really helps build a relationship, when you can accept your faults and make an effort to be a better you)