I’m needing advice? Or something. Idk..

I don’t even know where to start. Me and my boyfriend have been together on and off for 4 years. We’ve been together consistently for a little over a year now. We now live together,and it’s cool. I love our little family. And I love him, I think. It just doesnt feel like it use to, stuff isn’t the same. Randomly I will get this feeling like I don’t want to be with him anymore, it’s like I lost myself since the beginning of me and him. I’ve lost my best friend because of him, he doesn’t like any of my friends, he always has something negative to say about any of them. I’m stuck and really needing some advice or something. We also get into at least 2-3 fights daily and it’s really stressful. I just don’t know what to do anymore.

Edit: I don’t want to hurt him even though I think Part of him feels the same way, we both just don’t want our son to grow up without biological parents.. and he always mentions in a fight how he thinks I’d take him away if we broke up.