Is my wife cheating? Advice needed.

Long story short. A month ago, when I ML with wife, I was surprised that I could stick inside her at the first thrust. She was loose, not permanently loose, but more like the kind of loose if you ML the second time on the same day if you ever tried. You know first time it takes 5 thrusts to open it and second time just 1.

So, I did some research and did things to her cell when she is away. I am able to track her location by Google+ in real time. Then, exactly four weeks later and five days after her period is gone, I noticed something not normal. She was supposed to drive from office A to office B, but stopped at a Sheraton Hotel on the way from 1:05 to 1:55.

I called her at 1:15, and specifically asked about her location twice. Both times she said she is at office B. She knew that I am 15 miles away from B and didnt have a car to verify. Called again at 1:40 and 1:50 and she didn't pick up.

In the evening, I confronted her about her lie. I didnt want to reveal my tracking ability. So I said, I was not well and came home early, then drove by office B and didnt see her car during my call. But didnt say anything about Sheraton.

She explained that she is at the hotel conference room attending a meeting and she lied because I keep suspecting her. The she offered to let me see her work notebook computer. There is indeed such a meeting event from 1:30 to 2:30.

Then I am confused. I know I can fake such an event on my calendar if I really want to. But would my wife have such sophiscation to prepare it just in case? Or could it be the other man's idea, if he is experienced?

We ML that night. Again, it's complete entry in one thrust. I can feel that she just washed her virgina before coming to bed. Both are not normal. She been super nice and loving to me even though I suspected her and is now planning dinner and movie out tomorrow (Sunday).

I am seriously confused. Advises needed. We are both professionals with good pay. Have two children and a lot that we will build a top 1% house next year. I am certain she has no plan to leave me. But I am not sure if she is seeking exictment outside.