Idk how else to communicate

Been with my husband (although not legally married) going on 9 years. We have 2 kids and 1 on the way, but lately I've been really struggling with him. Long story short, I'm not happy. I told him that I feel like we are just roommates, that I don't feel in love anymore and that I'm always the one making an effort. I told him that I need him to fight for us, to make an effort and he said he will but of course nothing has changed. The major red flag here is he thinks I'm just being dramatic and it's the pregnancy hormones. I'm lost and unfortunately I've found my mind wandering and thinking about a future without him and thinking about other men. It's the exact same fight and he doesn't hear me, I've tried asking him to go to therapy but is it so wrong of me to want him to fight for me and prioritize me? Why do I have to schedule the therapy appts, why do I have to always plan the date nights. Any gentle advice would be appropriated, I love this man but sometimes I feel like our relationship has become unhealthy and I'm not longer happy.