Since I graduated high school in the early seventies, the Go-Go's were not a really big deal to me, though I did enjoy the music. However I really didn't pay much attention. So two things I've learned from this thread: that Belinda Carlisle was a massive drug addict (I always thought she was the clean one) and that when I thought she was singing "now that I see you", she was actually singing "our lips are sealed". You learn something new every day!
They were all drug-addled or addicted to a degree. Wiedlin and Schock were probably the least messed up. During the band's peak years, Caffey was a heroin addict. Her getting sober was one of the driving factors in their breakup. There was also a lot of tension because the songwriters (Caffey, Wiedlin and Valentine) were making a lot more money than the other two.