Crush or just being better friends?, can you tell Options

[Jayembe]

I have this friend his name is Jon. I've known him since the beginning of September and we just used to talk as friends but we noticed we liked the same things and it went to the point were I thought he was the same person as me. A couple nights ago we started talking about something and, I asked him if he was trying to impress me then he answered maybe and I dont know. Then last night we talked again and I said he could meet might other friends and said that they would probably think he's might boyfriend and he was like oh thats alright. From that night I kept talking to him and now it seems like something changed and now its like he likes me and i like him but we just dont now if its true. And... he's being a little more perverted and nicer lately do u think this is a start of a crush or just one of those weird weeks or are we just becoming better friends? Can you help me out?