Yes, his comments were dismissive of atheism. However, it doesn't sound like you are open to discussion of different views either. Both of you sound quite inflexible in your views, and it might be worth bearing in mind that both atheism and religion are belief systems that people can get very entrenched in. You seem to both be very attached to the idea that your respective positions are the right ones and the other is wrong.
You seem to have some very absolutist and blanket views about all faiths/religions and the fact that you are very firm about not wanting your children "raised in a faith" is not suggesting openness to discussion. Your stance and some of the things you have said on this thread also suggests you are not very tolerant of the beliefs of others, perhaps because you do not actually know very much about how people of different faiths, religions and denominations live and practice.
I went to a Quaker school, although I had Catholic parents. Many of my friends' parents were Quakers. One of the major principles of Quakerism is allowing children to find their own path. Yes, children may be raised in line with Quaker principles, but this is no different to any parent, religious or otherwise, raising their kids in line with their own beliefs and values. Quakers are actually advised against pushing their children towards any faith, and you can't actually formally become a Quaker until you're 16. I didn't have anything to do with Quakerism for many years after leaving school and returned to it later. It's a personal belief system, my children have been to children's meetings a few times (essentially a play group where they might talk about stuff like kindness, tolerance, inclusion) but they have never been raised with any religious identity.
I'm not saying this to try to "defend" my own faith, but to educate and challenge your assumptions about people who have a faith, how they raise their children and what that means. This will look very different between religions, denominations and families.
Ultimately you and your boyfriend have to work out if your belief systems are compatible, and if there is any room for compromise and understanding if they are different. They may not be, but you may also meet someone who has similar beliefs to you now, but changes later. Many people turn to religion or return to it when their lives hit crisis points, illness, bereavement, etc. Sometimes those things make religious people lose their faith too.