Is going on Craigslist missed connections and casual encounters cheating?

Anonymous
I checked my history on my computer looking for a website I had been to and I noticed that my girlfriend had been on craigslist missed connections and casual encounters. I then checked her computers history and it seems that she goes on that website all the time. She searches missed connections for her name, her work, and various local towns. She even searches for her ex-boyfriends name even though she claims to hate him. We have been dating for 2 years and are very serious. Should I be concerned or is she just wasting time on the internet?
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+1 y
She seems distant sexually, as she always has an excuse for why we can't have sex. She seems to be tired all the time. And there is really no way of asking her about it because I know she will blow up in my face and say that I am spying on her and that I do not trust her. The thing is I kinda don't trust her. I have caught her lying to my face about small things, but it proves that she is capable of being dishonest. She will even cover up a lie with more lies.
Is going on Craigslist missed connections and casual encounters cheating?
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