You have to come clean. You want her to be honest with you. Be honest with her.
You can tell her you were worried about her, but I suggest telling her you know it was wrong and you're sorry and it won't happen again. She may be pissed (rightfully), but you will get past this. Damage to your cause? Yes. Death sentence? No.
M 39 W 39 M'd 10 yrs; T 14 yrs S7 D4 Bomb 5-8-05 W not working on M 1-22-07; EA 2-22 DB 4-10 S 6-11 No more C Link