Is it normal my bf says he still not over his ex

Princess

So I’ve been with my bf for a couple of month everything seemed to b going fine we had an argument and he sed he still loves his ex I did something very horrible that i don’t really want to admit to anyone so he sed he still loves his ex and wished they were still together and regrets having a child with her as it’s made things complicated him and his ex have been split up for a year or so but he also told me he loves me and wants to be with me I am so confused he’s acting like nothing ever happend