They keep up with me, I do not keep up with them.
That said, from a non-sexual pov, it's actually a good idea to get into the habit of keeping up with all the people who have touched your life. Friends, Family, homies, chicks you are on good terms with.
In general, men fail to do this, and this is part of the reason that men are much lonelier than women are. We, as men, let those friendships die. Part of that is that we expect reciprocation - and a lot of your friends and family ain't finna call you unless they need something.
* Me ducking calls from fam who need help on the bills*