I wouldn't take it as a sign of not loving me. Even with a stable job, age 36---I'd 100% freak out and would still be freaking out non-stop. Because he emphasized he'll do whatever it takes to be a family to you and Baby, I'm thinking his panic could have sounded like, "How am I going to do this? Kids are exhausting--where will I find the energy? What if I don't raise him right? Are all my other interests and free-time cancelled?"

Meanwhile, someone who didn't love you would be thinking, "Oh, I'm not doing this! How can I get out of it? I am *not* cancelling my hobbies and sleep. I have a right to my life! It's her mistake, she's on her own!"

So, my thinking would be that he does love you and wants to be with you. Although I can also understand why a reasonable person in your situation would think, "Well darn. That is not the reaction I wanted. Does it mean he wants to leave?" Because right now, support is what you need the most! And so it's natural to keep an eye out for clues that support might fall away.

But I think he recovered well!