What do you do and how do you handle a relationship when the person you are talking to doesnt tell the whole?

truth. I have been talking to a lady for 3 weeks I made plans to go see her on superbowl sunday. I met her through a friend that I have known more than a year we laughed and talked about our children mine and hers I made the arrangements and got bus tickets to see her. She failed to tell me she was still married and living with her husband until after I made the plans I told her I did not want to be hurt emotionally or physically. She says nothing is going on with her and her husband I told her I was afraid to come she got mad and text me that when I get an ounce of trust let her know. Do you think I am wrong to feel the way I do and what do you think I should do