How do I know if this is real or just convenient for him?

So my situation is this—me and this guy have been hanging out for like 4 months now. We text all day, sleep together almost every weekend, and he remembers little things like how I take my coffee or that I hate celery (which honestly no one notices). He’s sweet, brings me soup when I’m sick, laughs at my dumb jokes, all that. But every time I try to talk about us, he gets all quiet or deflects like “I don’t wanna mess this up by labeling it” or “we’re doing fine, right?” Thing is—it doesn’t feel fine. I keep waiting for him to say something, do something, anything. We’ve met some of each other’s friends, we’ve traveled together, and we’ve had deep convos about values and past relationships. He knows stuff about me no one else does. But then he’ll go radio silent for days and act like nothing’s wrong. And when I ask, it’s always “I’ve just been busy.” I don’t even know if he sees a future or if I’m just the person he calls when he’s lonely. The green flags are there but so are the red ones? idk. Sometimes I wonder if I’m overthinking it but it just feels unfair to keep giving this much of myself when I don’t know where I stand can’t do this anymore