Imagine Shawn telling the crowd this: you all need to know I am dating this girl and I love her so much! She is standing right there. (He points at you) I just wanted to tell her in front of the whole crowd and in front of the people who support me day in day out, that you are the world to me and that I love you..
Someone took a video of it and he posted it on his insta to show basically the whole world how much he loves, adores and cares for you.