Confused about my marriage

Idk if it the pregnancy hormones or what it is. But I feel my marriage is off lately. I mean me and the hubs are doing ok we’ve been arguing quite a bit but we’re good at fixing things and talking it out. Well the other day while having a normal convo about how I feel our relationship has gotten better and stronger he responded with “well if we didn’t have kids I don’t think we would be together especially because of how we argue sometimes” mind you our arguments are very light because we are both the type of I’d rather talk when we cool down. So since that day im a bit heartbroken. He says he don’t mean nothing by it but I feel like ok then if you’re just here because of the kids then what’s the point?

Now I feel like marriage is off because he’s been real weird about his phone lately. He isn’t romantic or sweet unless he wants some and he just seems annoyed most days. He used to be so chill and lately he gets mad and begins screaming and talking to me real ugly. Sec is just straight to the point and boring lately and most times I try to start sex he can’t function so it’s basically a I have to wait for him to wants some so I can get some kind of thing.

Today we are going for dinner and I want to bring all this up so that we can get down to the bottom of it(although I already tried to do that and he claims all is fine) idk just need to see if I’m over reacting or if I have a point at being butt hurt?