Does he still have feelings for his baby mama??

Me and my fiance are young. Both 21 and have 4 kids all together but not all with eachother.. he has a daughter with his baby mama who is 1 1/2 and i have a daughter with my ex who is also 1 1/2..

We got engaged pretty fast.. and got pregnant with twins soon after.

I had to move states due to my job relocating and so he moved with me obviously because hes not going to NOT move when his pregnant fiancé moves..

Anyhow we tried to reach out to her once again in June and she blocked us.

And then recently after i gave birth (like the first day after giving birth in the hospital ) he had all these “realizations” about how he should have been there for her and all of this stuff so he called her and they talked and for days after all he did was talk about being on good terms with her and i felt so sad because i had just given birth and it was suppose to be about me and the babies and instead i was tortured with hearing her name every hour.. he even called me once to talk about her and the trip he planned for them to come down. She ended up declining it and going back on her word to not let him see their child.

And then fast forward 5 weeks and he got child support papers finally, and found out she posted her fiancé on her Facebook and he went and looked on her page and started saying things like “wow she got fat” and “hes ugly “ / and I’m like “why do you care about her fiancé and calling him ugly ? When he has nothing to do with you” and he’s like “why not” I’m like “cause that makes me think you have feelings for her still “

And he flipped out and we got into a huge fight over it cause he started over talking me and yelling.

I feel heavily insecure about our future right now.. i just want to be happy in my life and now i feel fucking dumb for putting so much on my plate so young.. i just wanted to be happy and my daughter to be happy and have a dad in her life cause her father is MIA..

Now i feel like i made another dumb choice.. i dont have the patience to deal with this crap.

I got with him knowing he had a daughter too cause i felt like he could relate and accept me more. We were also high school sweethearts that lost touch.

He does a lot for me and is constantly all about me. But when it comes to her i still feel so insecure because of him doing that while i was in the hospital.. it was about her and it should have been about me.. i had such a hard pregnancy and almost died , and then had an unexpected natural birth with the twins and was back in the hospital days later for post partum preclmapsia and kidney stones.