The atmospherics were so electric that at times, I remember thinking that the roof of the building was come clean off.
She has come clean after a mystery illness covered her skin in boils and made her constantly nauseous and tired.
They offer a line or two of advice covering issues like communicating with your partner, going out vs. staying in, or whether today is the day to come clean about something you've done.
If the relationship you are cultivating becomes more serious, you'll have to come clean if you've lied!
The fact that you had to 'confront' your girlfriend text messaging with her ex before she would come clean says to me that either she is not committed to the relationship or she does not trust you.