Messedup84, you sound remorseful which is a big plus. I’d suggest you end the relationship with the new girl if you don’t love her. You can still be there for the baby 100% but it’s not fair on her if you stick around under false pretenses. I’d also suggest that you tell your ex before she hears it from someone else. If there is any chance of you getting that relationship back you need to be totally honest with her