You got a lot of great feedback from a half dozen of the most experienced posters, and they all pretty much hit it on the head, so not sure how much more I can add. I'd re-read the posts from Ginger, LH, DonH, DnJ, Dawn70, and kml a few times if I were you.
The only thing I will say is the same thing I've already stated a handful of times on your thread which is...make sure your kids are your #1 priority and if GF can't accept you have other children and is trying to pit you against them than the relationship will never work and you need to stand up for your R with your children first and foremost.
Also, I'd consult an L to see if your child with GF being a baby might jeopardize 50/50 for you as the father if the court would be biased to the mother at that young age and if that is the case maybe you string things along a bit until equal custody is no longer a factor.
Me:39 Ex-W:37 M:7 T: 9 S:6 D:3 BD/IHS/Confirm EA/PA: Feb '20 OM1 affair ends: May '20 W/OM2 & moves out: June-July '20 W files for D: Jul20 OM2 confirmed: 9/2020 Divorced: May '21
