Sometimes we need someone else to occupy our time, our mind.
If I am reading right between the lines.
Someone to make us happy, interested, drive crazy
When instead of thinking own stuff
We would think about them, what they want, how to make them happy, how to be nice,
And our behaver deep inside will change, the thoughts will change, something else will be more important, replaced on good things too.
Like seasons, spring replace winter.
No season would stay still.
Like when people have a baby, we are not going to be starting in the window all night,
We would just hope he or she will finally fall asleep after being entertained all day,
(Babies don't only sleep and eat) and we can do something quiet for the baby not to wake up.
We are not the same any more, it's new different life.