That's for the little nostalgia bit because last year around this time that's where I was :D .
Your laptop, cellphone or even teddy bear does not have a word as to where it goes, or to whom. You get in, you buy it, bring it home, and voila, you're done. Newflash for over possessive people: humans do not work the same way.
I've seen it playing out in various ways. In friendships, it's often the person who gets jealous everytime you see or talk to someone else more, and who tells you (because feelings are feelings after all) every chance they get. I saw that at school when I was around 14. Recess time, this girl is yelling at another because *gasp* that other girl had been talking to someone else. Talk about a ridiculous scene, especially at that age.
Sad thing is, it does not end at that age! As an adult, I've also heard many stories about instances when a so-call friend guilt trips you or yells at you because you've been to a party without them, or to a movie with someone else. I have felt sad about friends doing this before, but it was more because I had the impression of being left aside more often than not, rather than because they were "mine" .
That's actually the reason why I find this whole possessiveness so absurd now. I used to feel so lame about things and one day I woke up and realized that HEY, just because I cannot do certain things with certain people does not mean I cannot do anything at all. And that's when I became more at peace with it. If, say, your friend goes to a party without you and you're sad about it, offer something like a picnic, a movie somewhere, you know, something else that they can do with you with pleasure.
And then, you have relationships...

