This means that a person is first, mentally unstable. Second, their heart is broken. Third, the really really like you.
Emily ; Hey Travis? Can I tell you something?
Travis; Yeah sure what is it?
Emily; Here goes, ilysmbictyybikydlmb!
Travis; Wtf does that mean??
Emily; It means.... I love you so much but I can't tell you yet because I know you don't like me back.
Travis; I-I love you too Emily!
I love you so much but I can't tell you yet because I don't know if you like me back.
Person 1: ilysmbictyybidkiylmb
Person 2 : what tf? what are you saying?
Person 1: oof here goes: I love you so much but I can't tell you yet because I don't know if you like me back.
Person 1: I guess the end bits don't make any sense anymore because I just admitted I like you