Perhaps it would help if you explain what is it exactly that you "can't stand anymore" about his paranoia. Is it cos:
a) As your fb & due to his own paranoia, he's forbidding
you to meet other samsters ever again; or
b) You want
him to go with you to meet other samsters for gatherings & he refuses so; or
c) You suspect that he's actually a "lao-jiao" with a longer history - & his reluctance to meet others & thereby possibly blowing his cover - is making you nervy
Ok ok... option c is a bit far-fetched & I'm just kidding here
Paranoia is perhaps too strong a word to describe your fb's reluctuance to meet other samsters.
If he's like most people who know how to act blur when the phrase "sbf" comes up in conversations with friends/colleagues (see below somewhat similar thread), what more his wish to maintain anonymity & only meet people
on his own terms?
http://samleong.shop/showthread.php?t=302316