Ms.Dawn

Yes, it's possible. It's possible the USCIS can say yes and it's possible they can say no. If you had completed a search through this forum, you would know it's possible (and why else would this subforum be called Adjustment of Status from Work, Student, & Tourist Visas?).
The main difference with your situation is that you are married before entering the US and then contemplating adjustment of status. Most of us who have gone through this were not married and not even engaged. The B-2 visa is for individuals who wish to visit the United States temporarily or to visit family or friends.
Good luck with your decision. You've burned a lot of bridges with people here at VisaJourney who can provide a lot of guidance and assistance.

I concur. I also think of your use of "supposedly" as suspicious.
It is ENTIRELY possible but given you arrived ALREADY married then the risk of denial and a lifetime ban is far too great. You are more than welcome to try but I would be remiss not to warn you about the very serious risks if you are denied (it's not guaranteed you'll be denied but IF you are... very bad).

You made a mistake in your thinking.
Yes, people have adjusted successfully from tourist visas. That's possible if a tourist enters the US, falls in love, and gets married without any intention on having so when entering the US. The big surprise!
But that's not the case with you. You entered with a tourist visa (B2), but you were already married to a US citizen. The surprise is missing, the wedding is missing, and therefore you cannot successfully adjust status. You could try, but your case is one of the few where a paper trail unmistakibly points to misrepresentation, and that carries a lifetime ban.
My advice in your situation: don't even think about it! Travel back to the great Republic of China and apply for an CR-1 visa.