If your heart is in 2 places, you’d be making a mistake to give a commitment to either woman. Both of them want 100% of you, and you’re not able to give 100% of yourself to either one of them, so my advice to you is to continue to be honest — and not give either one of them the 100% commitment that in your heart, you don’t want to give.
I know that isn’t what you wanted to hear, but the reality is that the distance between your ex-girlfriend and yourself doesn’t work. That’s how you hooked up with your current girlfriend! You weren’t interested in weathering the distance or the infrequency of seeing one another with your ex-girlfriend, so don’t give a commitment to her, because you’re not going to be able to honor it. And if you commit to her, you’re committing to being not just her husband, but a stepdad to her children — and if your heart isn’t at least 100% in it, you’re going to cause drama to yourself, her, and her children. Big mistake with a lot of pain. 🙁
Your current girlfriend is not someone you’re interested in giving a full commitment to because if you wanted to, it would be easy to do so! She’s right here. So accept that you like her, but you’re just not that into her. And if she can’t accept that, it’s her problem. She’s free to stay or go.
It’s clear that you’re getting pressured by these 2 women, but it’s important you stand your ground. If you don’t, this drama is going to get exponentially worse.
See if you can focus on making a life in Florida where you live and work, with someone fabulous there. Compatibility is key to relationships and you don’t have that with your ex-girlfriend, and you don’t have the interest in your current one. Keep dating!
