She feels my son comes first. She constantly makes it like its my son and I against her and the baby. I am at a loss.
Wolf your life sounds horrible with the baby momma drama. Sounds to me that it's time for a heart to heart talk with your GF. If she can't understand that your son is an important part of your life then you should consider ending the relationship.
I totally agree with LH on this one. Listen, Wolf, I can't speak for anyone but myself, but it just sounds colossally selfish for your gf to NOT see that your children from you first marriage are as important to you as your child with her. As I recall, you have said she's a lot younger than you and maybe that is part of the problem (her age in and of itself, not the difference between your age and hers), but if you're going to play in the adult sandbox, you have to handle adult issues like an adult. It is rare for people your age to NOT have "baggage" (i.e. children) so if she has a problem with your having them, then she needs to find someone who doesn't. Her attitude is a huge red flag to me.
Also, I'm a little confused on why, if you have talked about how her dad is kind of disrespectful toward her, he was the person chosen to "mediate" so that y'all didn't have to leave your home the night you called the cops. Maybe he was the only one available, but it doesn't sound, at least in my interpretation of your posts, that he is super supportive of his daughter.
Further, I'm not saying your gf was right in anything she did. You have a tendency, when you write things out here, to sound like you are trying to get everyone to say that you are right and she is wrong. Now, I will admit, maybe that is just the way I'm interpreting what I'm reading and I'm actually completely off base, but it just strikes me as odd that you seemed to want the police and her dad to take your side (again, NOT saying what she did was right, so I'm not taking a side at all here). Then, you explained how her dad basically told her she was wrong and you were right. That seems like it would just fan the flame and not de-escalate the situation.
Finally, in what is probably the best advice I have ever seen on these boards, Traveler told you to lose "calm down" from your vocabulary. YES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Dude, I don't know if you are new to women or what, but telling a woman to "calm down" (or relax or any other version of that phrase) is like throwing gasoline on a grass fire. NOT helpful.
My heart really does go out to you, Wolf, as you seem to really have a lot of stress and strife surrounding you. I pray that you somehow find some peace in all of it and find a solution that works best for all involved.
Me 52, H53 Bomb drop 9/29/2014 Divorce from XH final 12/17/2014 Marriage #2 12/31/2019 5 adult (step)daughters (3 from XH's first marriage, 2 from current H's previous relationships) 6 grandkids