Did he cross the line?

First off all, let me say I am absolutely 100% head over heels in love with this man. We've spent the last 6 years together and he means the world to me. But he has trust issues with me and long story short He gets On my computer, got onto my Facebook, looked to download the archive for my Facebook, had it sent to my email. Then went into my email, downloaded it onto my computer to look through every old message I have ever sent on Facebook. I freaked and told him I needed some space. I feel like that was totally crossing the line. I don't know if I'm overreacting, if I should end things, so many questions. Please help