when alice and jen moved back home the entire coven started hanging out again. my idea so far is that jen, alice, agatha and rio were friends in uni. jen and agatha were roommates and hated each other at first but eventually became friends. alice and jen had a on-off things for a few years before they figured their shit out and committed to each other. they've been married for about nine years so far. agatha and rio also had a on-off thing but it was very toxic because both of them have issues they havent dealt with very well. im thinking lilia was rio's student advisor or mentor or something and they kept in touch and became really good friends. sharon is agatha's neighbour in westview but somehow jen knew her before agatha moved to westview. jen introduced her to lilia and the two of them hit it off and became friends. so... yeah that explains the coven. hopefully.