Should I tell her or live with a guilty conscience?

[Summerset]

Technically as long as she gave you concent to be in her twitter account I don't see how you've done to much wrong, she may have suspicions that you could've read them. If it's really really private it might be better not to mention it, the truth is not always the best policy but if you think that she might be just embarrased or a little annoyed you should tell her to clear your conscience. Mainly if she looks worried about it when you tell her act like you don't care about it or that you've seen the same thing or been in the same experience so it dosn't bother you. If it's not true don't lie again but it'll make her feel a whole lot better if you don't go on about it.