Babies are a deal breaker
It sounds like you're saying that having babies is a non-negotiable deal breaker for you in a relationship. That's a pretty significant consideration!
Can you tell me more about what's behind this feeling for you? Is it because you're not ready to be a parent, or is it because you're worried about the impact it would have on your relationship or lifestyle?
Also, have you had any past experiences or relationships where having babies was a major issue, or is this a new realization for you?