the act of missing.

just thought about it.
ppl are habitual animals. and we miss things and people that we're used to having.
but at the same time. one can't miss something that they never had.
also. new habits are always in the process of being formed.
so if i get used to missing you. then i guess i don't actually really miss u anymore do i?
at first, the "i miss u"s at the end of emails are genuine professions of wishing you in my life. but over time, as we become used to life without you, they just become another habit, another thing that's just tagged on at the end of an email out of habit or social convention.
how can one miss something they never had?