The past is in the past jax. I married a woman with a kid and raised her as my daughter. A person's past decisions dont taint a person they make them who they are. Unless they are a former criminal or cult leader!
If you cant embrace it and be able to joke about mistakes that we all make you probly don't deserve her. My 2 cents!
Or maybe you are insecure? I dont know because I dont know you!