Re: e-mail - from a practical point of view, what difference does it make whether you have the password to his primary account or not? If he really wanted to talk to someone behind your back, he could get a free web-based yahoo/hotmail account faster than you can say "Jack Robinson", and you'd never know about it. So while the whole "trust" issue may have to be addressed, I'd let the e-mail thingey go, as it serves no purpose.

Pen