As far as we know, Courteney and Jennifer obviously still hang out. I saw a couple of years पूर्व Matthew and Lisa were at a protest together so they must still keep in touch! I'm guessing they all see each other from time to time :)
Jennifer is Coco's(Courteney's daughter) godmother. That means a lot. Im sure rest stay in touch too. आप cant just forget the people who आप have worked with for such a long time. I personally feel David maintains his distance.
Courtney and Jennifer are best friends. I know that Matthew Perry and Jennifer hang out because she used to be his trainer but maybe that was still in the दिखाना times...