I'm still with my partner but my little one is breastfed so she always goes to sleep with me. I've always thought the same way, that he would simply not be able to soothe her, but he's been really keen on helping out more and one night he took her while I was struggling to have dinner. And when I finished I went in the room to find her asleep right next to him which was super cute. We always worry about things not being "the right way" but dads are able to find their own "right way" ❤️ Also research shows babies actually sleep better for dad then mum, they mess about more with mum but they're able to relax better with dad. Maybe just ask him to do a trial weekend and tell him you would like to improve communication because you feel anxious about it, hopefully he's understanding
I've not been with my daughters dad since she was born. He's had her only 2 nights since then as I had some plans (he doesn't want overnights or longer than 16 hours a month with her 🤣🙈) but I was the same. I was so worried, but I wrote our routine down and he did stuck to it and she slept all night for him. Its not easy, especially as you've done it all but enjoy that night off! One thing I did say to my ex was please just let me know when she's asleep and he did text me to say she was. From then, I felt so much more relaxed xx