We haven't known Shining Armour for an awfully long time, but Twilight grew up with him, and she knows what he's like.

A few points in Twilight's life where she felt down and Shining was there for her, to cheer her up and to convince her that there was nothing to worry about.

Please offer any criticism that you can, please let me know if you see any mistakes in here and please give me suggestions for the tags. I'm always so crap at those...