THREE WORDS

If I only had three words to say to you 
What would they be and would they be true
Three words to describe how I feel 
So let's start this three words ordeal 

I love you is obvious that's for sure 
Said by generations both rich and poor 
Please go away if I want some space 
Something to say if I want a hiding place

Please take care if you are going away 
I would say this if I didn't see you today 
I'm so grateful would certainly be said 
Seeing a person using a shop for his bed

My three word challenge is now done 
When reading it I hope you found it fun 
Three words my friend are never enough 
Found this task both difficult and tough