[Merkaba]

So, my girlfriend swears she was parked outside of my apartment and could see me at my computer ignoring her phonecall, when I was actually in the shower. She says I'm on the comp too much and blah blah and got really pissed since she had been calling earlier and couldnt get me. Is there a way I can look at my system and show when i was logged in or out or whatever I could do to show that I was on my computer between 915 pm and 930 pm EST...She was really upset and we argued for thirty minutes about this and I would love to prove her wrong!!! Thanks