Split parenting?

LeAnn • Baby Bree 🎀 ETA~5*11*16~ or sooner!
So my fiance and I have been having a rough patch and lately he's been saying "if we break up then..." I made my point clear that I don't want to, I want to raise our child together, I want to patch things up and live our happy life like we used to. Is that wrong of me to feel that way? I know he's growing more distant and I can feel him pushing away from me.... I don't wanna do split parenting, my parents are split and so are his and it was the hardest thing for both of us growing up. I want that life were our kid doesn't have to choose what house to go to, or choose who they should live with... I feel like once our daughter is here he will be better and realize he needs me and much as I need him, not just for the baby but to support each other when things get hard.... But like I said... Is it wrong for me to feel this way? I couldn't even imagine moving on from him.