Confused snake

I hissed, 

not to frighten you; 

But to awake me!

I want you, 

to let me live.

I am not an invader, 

But you are... 

I am confused, 

You conquered my habitat, 

But you make me alien. 

I hissed, 

not to miss my life. 

But you beat me, 

to loot my place. 

So I am confused.