Why would she tell me she loves me than go do it with some guy and come back to tell me weeks later she’s pregnant with my child?

She is manipulative. Some people are that way.

She has clearly shown her character.

Get a DNA test when the child is born.

Tell her just to stay with other guy and to let you know when baby is born and then you can do paternity test - obviously she told other guy same story and he told her to go to hell and she thinks you will be stupid enough to believe her, Good Luck

she has mental problems

Sorry to be blunt, but she obviously thinks you're stupid. Why would this guy pay child support if the baby isn't his?

And why would you help her? She's a cheat, a liar, and a thief. This is not ideal mother material.

Oh no. If and when that child is born get a DNA test ASAP. She is crazy. Run like the wind..

She may have break up with that guy . Easy to know Parentage through DNA after birth . Say her to go away and come after child birth for DNA . After having DNA report of child with u , then decide what to do

So report her for fraud when she puts his name on the birth certificate and files for child support from him.

She’s a trifling little tramp that made a mistake. Take her back and it’ll happen again. Read my first five words AGAIN.

Because your cock is small and you obviously make better money than him.