Are my parents overreacting?

Okay well I'm 16 years old and I have a facebook account that I got last year with my parents permission. The only thing was I had to keep my grades up, and all that. They told all my family members that I had a facebook and to add me and keep an eye on me since they don't use facebook. They told me that I had to add them. I agreed thinking okay I'll add them. So I added them and a couple days later, a close guy friend posted on my wall, this "Like game". It was something like, "Like my status and I'll tell you if I would smash, pass, or cuff and a rate" and he wrote smash, cuff and gave a rate and my aunt (she's the nosy one in the family) must have been looking at my wall and told my parents that I was doing stuff with a guy. So they talked to me and I explained and they said don't let it happen again. So I'm like okay it won't. So I blocked her and a couple other family members from looking at my wall. Again, my aunt told my parents that I was hiding stuff cause they told me to unblock my wall or I would have to deactivate my facebook. I told them that I wouldn't unblock her, cause of what happened last time but I would unblock everyone else. So I told them that if they really wanted to see what I was doing, to make a facebook and add me theirselves instead of getting people to spy on me. They started getting angry and yelling at me and saying I was sneaky and all that. But I wasn't even being sneaky, I only blocked her to make sure no one would be getting confused. So in the end, I ended up unblocking her, and I made a status that said something like "I hate it when people are being nosy" And of course, my aunt seen it and told my parents. They made me deactivate my facebook and took away my desktop in my room and moved it to the family room. So my question is, do you think it was fair for them to do this or are they overreacting? What are your thoughts on this situation?