Afraid my brother read my Facebook messages!!!?

[HologramGal]

He asked for my password because he deleted his Facebook so he could get a hold of his friend. I don't have anything bad on it but I have personal information I would be embarrassed and mortified by if someone found out. I told my firmed th either day of how I think I'm falling in love with my brother's friend who is way older than me. And I've only met him four times but we have been texting for months now. I'm afraid he will tell his friend about what I said, I don't know if he read all of the messages for sure but now I'm scared thinking about it. I just changed my password and deleted the message but I'm still worried. I would be SO FREAKING EMBARRASSED! AH, what can I do?
Messaged my friend the other day*
I'm single and not with anyone what are you tlking about?