Should I take my wife back after she ran off?

Years ago, my wife met a guy online name Fred. Fred is what you youngins refer to as a "bad boy". I am a christian man with a normal everyday job, I guess she was secretly into bad boys and she was bored of me. My wife was 22 at the time and Fred was 28. 5 years larer, she comes back to me 7 months pregnant, crying and whining. She said Fred abused and cheated on her numerous times and she left him for good. She tells me she is now done with bad boys and is ready to commit to me(a good guy). Should I take my wife back and forgive her?