Notably, that doesn't mean that the person who initiates less doesn't value your company! (Of course, it also doesn't mean that they do value you, only that the frequency of initiation is not a good proxy for the health of the relationship.)
it may not give a 100% accurate picture. but it's certainly one of the variables that plays into the health of the relationship.
Now I am the initiator most of the times.
In today's info overload overwhelming reality, its natural that lot of people are going to disconnect.
anyway i'm surviving and happy new year [+2 days] nerds!!!!!!!11
you mean, are they really good friends or not? One is always reassessing that, I guess.
If I am the person giving and the other person is just the one that takes, without giving back anything, then nope, I am leaving that relationship for reasons that should be obvious. Another term to call the "takers" would be "leech" or "parasite". It does not sound good now, does it?
If you look at your algorithm's ROC: you really want to avoid false negatives ("nope, not a real friend" when they actually could be).
Whereas a false positive ("yep, could be a real friend" and they turn out not to be) is something you will notice & correct eventually.
As long as they're happy to talk when you call, or they show up at the group event when you badger them enough: that's fine. Some people are just not initiators, and it's either you make the effort, or you lose touch with them. You can't insist on reciprocity.