When did you first leave baby overnight?

Looking for a little help thinking rationally, since my husband and I are both getting pretty emotional in our discussions 😊

My baby is about to be 11 weeks old, and I am a bridesmaid in a close friend's wedding this weekend. She has a small wedding party (3 bridesmaids) and 2 of us plan on staying at her house with her the night before as we will have to begin hair/makeup at 6 am. I live over an hour away, so she offered to have me and the baby stay with her so that we can take part in festivities the evening before the wedding without having to travel so much. However, my husband feels that it would be rude to have the baby stay the night with me, and wants her to stay with him at my in-laws' house thirty minutes away from my friend's house. This is where my lovely postpartum, mother bear emotions are kicking in. 😊 He says that my friend surely doesn't want the baby around that night (even though my friend often comes over specifically to visit the baby and has even dubbed her a "baby bridesmaid" with her own dress and all). I can understand that - she wants to hang out and have a chill evening watching movies, and a crying baby doesn't quite add to the atmosphere. However, I just can't wrap my head around spending the night away from my little nugget yet. My husband feels very hurt because he thinks that I don't trust his parenting and that I think he loves the baby less than I do, which couldn't be farther from the truth. He had to go on a business trip a couple of weeks ago, so he feels that I should be able to be apart from her without such a fuss. I don't know how to explain the gut-wrenching feelings that I experience when I even think about leaving her overnight. They are not at all rational, so he does not understand them.

How old was your child/ren when you first left them overnight? How did you cope with being away? I know that if I left her I would be a wreck the whole time. It's very difficult to reconcile being there for my friend with being there for my baby (even though she would be in the most capable hands). I had severe PPA for the first several weeks after her birth, with horrible intrusive thoughts of things that could happen to her. It has eased up significantly (and been replaced by mild PPD lol), but for those first weeks I could barely stand to have someone other than my husband or I hold her. For some reason, my in-laws especially bothered me, even though they love her incredibly and of course would never do anything to harm her. I think some of my issues with this situation may link back to that. Reality check, anyone? 😊