Is this guy seeing someone else, losing interest in me, or what?!?

I've been seeing this guy for 5 months now. We're practically fwb (friends with benefits) but lately he's been acting really sweet to me, bringing me homecooked meals and acting well-mannered towards me (helped me shop for school supplies, I'm in college). But he still only contacts me every 2-3 days and we usually end up having after eating dinner or hanging out. But last night, I called him and asked to go see him. We hung out at his friend's house and then afterwards, he said he had to go home because he had to wake up early to work with his dad. This time, he didn't ask me for any kind of . Is he losing interest? Interested in another girl? Does this mean he likes me for more than a fwb? Please help?!!! I like this guy alot! Thanks!