I met this guy a while back (3 yrs ago) but we recently became close a week ago, i remembered him but he didnt remember me. I think he naturally has a flirty tone so I didn't really think of if much at first but it startedto get more bold recently. The other night we were calling and he called me cute several times to which I ignored bc I just didnt know what to say. He also made several other flirty comments asking if he was my favorite out off all the guys in the group, that we should plan a trip to NYC together, pointing out things he likes abt my personality, etc. How do I know when the flirting isn't a joke anymore and he is actually interested?