she says i am over reacting, am i over reacting?

we have seeing each other since about last year and we are now living together, she doesn't let me see her laptop or phone she said they are my personal stuff.
i am not anyone i am her boyfriend i know her family her friends her habits, she took a big nasty shit while i was taking a shower.
there is no reason at all for her to hide things from me and call it personal.