>>301130791
Most people treat ERP as a way to easily feel needed and connected with another person, even if it is fake. Give sweaty autists anime girl skinsuits and chuck them in the same room for a year and this is what you get.
Most of the time drama happens because B dislikes C, likes lewding A and has told them about how C is such a big bad person, and A decides to lewd C. There are plenty more reasons why drama could happen, but that's one of the usual cases.