Religious beliefs

Tomorrow ramadan fasting month starts n I'm gonna start fasting. My bf who's really religious keeps telling me to start fearing **Him**(God) n to tell u the truth, I'm not really religious.
I follow my family's religion but I'm not so orthodox, i dun wear hij@b n i dun offer 5× prayer daily. I'm not a bad person, i just dun believe in God much.
I dun think I've committed any grave sins, I've been living a simple life n i dun want to box myself in religious restrictions. Ik he's not wrong about his intentions, but I'm just not interested in it. Tbh, even my family doesn't bother me much about it. I'm a studious person n use my time to get the academic validation.
He never listens to what I've to say. I dun think he even plans on leaving me bcoz even if i tell him to find someone who's religious instead, he just brushes over it, ignoring what I've said. It kinda stresses me out ngl. I even told him it's haram to date, so why bother dating me at all. He literally doesn't care what i say ong