Does he still like me?

I like this guy and i dont know if he likes me.. Last week we were at a party and he was flirting with me and was following me around like a lost puppy. He told his friends last week he likes me and they told me,We have the same friends so they told me but i dont think he knows they told me..

But the past few days it doesn't seem that he likes me; like he use to always flirt with me and stuff but now he doesn't, he always talks to my best friend but I'm thinking that maybe he's a bit more comfortable with her since he knows her longer and they were friends first.. He still always talks to me and stuff but not as flirtatious as he use to so I don't know if he still likes me...