Well my opinion is that, in this situation, the whole issue depends on what you two agreed before you took the "break".Obviously he started dating someone else, and you did so too, during that time.
Then again you got back together ? and then broke up again for a month ?
If I understood it right ?
If that's the case then really what you do when you have broken up is your personal responsibility, I don't feel it is right that your boyfriend feels hurt because you met someone else in that period. (We all know how it is in the movies).
When it comes to the part where you lied, well that's wrong to do, either tell the truth or don't tell anything at all.
He says that he needs time to get his own respect for you and himself back , and I believe that you should give him that time.
However, I strongly disagree with this one: "and for me to show him that I can respect myself again and to gain back his trust"
It is up to YOU to decide wether you have done something that you disagree with or not respecting/disrespecting yourself. It is up to you to decide if you did anything that goes against your values, or belief, and not your (boyfriend)
If you should go and see him for the next two weeks, is something that you and him should talk about together, it is neither right or wrong, appropriate and not, many people feel diffrent about wether they should see eachother or not.
Other than that, don't give away passwords too easy
Wish you good luck 
[This message has been edited by Ghosty (edited 11-29-2005).]