Sometimes you smile dosen't mean you're happy, sometimes its just because you don'twant people around t be sad/disappointed .
Seeing your love one smilling and don'twant t disappoint her, you smile back,
She asking you, whether its fake ? And you replied , '' Its real :) '' putting a smile at th end of th message is because you don't want let her know, you don't want spoil her mood.
As you love her ! <3
Yeah, and you can't be so selfish ..