Why walk under false pretense?

I've heard lies in my life,

Lies bring pain and sorrow,

Lies break hearts deep down within,

I think

Why do people speak a lie,

Which Inflicts pain,  

Lying is discouraged or forbidden,

So punishable in IPC,

When in court,

In an intention of deceiving people.

I have realization that

Those who "walk-in lies" lie habitually,

Living under false pretense.

I know a girl,

Her eyes are stunning,

Amazing and beautiful,

Loving and caring,

She knows me inside out,

Knows what I get on the internet,

She got my snaps,

She is filling me with happiness

and so much more,

The beating of her heart

is like a beautiful song.

My Passion Runs Deep and strong.

As I gazed into her beautiful eyes,

She captured my heart,

When her love came shining through.

For the happiness that filled my life,

She thrills me,

I owe it all to her,

I long to fulfill her every desire,

I'm in love with her.

She doesn't express her feeling.

So I ask why she walks under false pretense.