Why should one use Smileys…

Peter & Laxmi  on whatsapp :

Peter : Hi dear.
Laxmi : ✋
Peter : how are you .??
Laxmi : :)?
Peter : missing me..?
Laxmi : ?;)
Peter : I’m not feeling well…
Laxmi : ?
Peter : How was your day..???
Laxmi : ?
Peter : are you busy.??
Laxmi : ✔
Peter : Why ?? What are you doing ??
Laxmi: ??
Peter : is there anyone near you..??
Laxmi : ❌
Peter : why don’t you reply in words? Why are you using smiley faces?
Laxmi :- ?
Peter : I heard you failed in English ??
Laxmi: Who telled you ? It is unpossible.. I went to saw the resalt yestathey… I Passed away
Peter : hmmm lets go back to smileys pls
Laxmi:- ok dear, God blast you.