Re: My life is over !

Um..........I expect that this is going to come accross as harsh.  So be it.  Are you NUTS???  NEVER, EVER marry someone for the "sake of the child" without 100% DNA proof that the child is, indeed, yours, and then consider other options if this potential partner displays the types of behaviors that you're describing!  This is the oldest ploy in the books, and one that you do NOT have to react to.  DNA testing would seem the most prudent thing to do.  That she is refusing this to you should be a screaming, flapping, waving RED FLAG for you to frigging RUN like your ass was on fire! 

Counseling?  I doubt it.  It just sounds as if she may have learned new manipulation techniques - up until the time that proof is required, yes?

If the child is, indeed, your offspring, marriage will NOT be the best option to someone like this.  The best option would be to seek full physical custody, child support from her, and raise the child in the best way that you can.  Marriage is a legal, binding contract just the same as a business contract - easy to enter and very, very difficult to dissolve.  Picture yourself with this woman 5 years from now.  Do you honestly believe that it would be a wise decision to enter into a legal, binding contract with this woman?  It costs tens of thousands of dollars to divorce, and incalculable emotional damage for all parties involved, especially a child. 

Give this some very serious consideration, for your own sake. 

Best wishes.