guy friend

I met this guy about 4 months almost 5 months ago and we've been talking everyday seeing each other all the time and I'm starting to really like him but he keeps telling me that we're just friends with benefits I don't know what to do and how to tell him how I feel. I'm hoping to become his girlfriend sooner or later but I don't see him wanting that. I met his mom and his stepdad and I get along with everybody so well.