Partner of 8 months has always been upfront that he hates religions, for many reasons. I'm not religious at all and follow no faith, but I'm respectful of others and have no qualms about religions. It just is what it is. However, he doesn't like Easter or Christmas, scoffs at anything to do with religion, and even refused to attend Religious Education classes as a teenager.
I saw it as a red flag at first but pushed it to one side because he's not an extremist or anything along those lines. No harm done for not believing in religion.
We spoke about my young daughter and I asked him how he would feel if she got married into a faith - would he still attend the wedding etc. (I was trying to suss out how far it stems.) He said of course he'd attend and join in etc.
Last weekend, we attended a family members first birthday. They're from Nigeria and are very religious. During the party, which was big due to the 1st birthday being highly celebrated in Nigeria, we had to all stand to pray. Granted, my immediate family (not religious) didn't pray but we did all stand up out of respect. He point blank refused to stand up, just sat there until the prayer was done. It's bugged me ever since.
I know it's not too bad in the grand scheme of things, he has every right to not pray or join in, but I saw it as very disrespectful and embarrassing to not at least stand like everyone else. Am I being unreasonable to have a word with him about it? It's really put me off him.