Does he like me or is he just being friendly? pleeaassee help I am so confused

Well he's older than me, he was the one to start up the conversation, he only asked me and not my friends for my age, he only had a sense of humor with me and not my friends, he talked to me longer than he did with my friends and when I questioned him about this he claimed that he doesn't try to keep the conversation going unless the person he's talking to keeps it going, he commented on two pics one comment on the first pic of a girl said I want this and the second pic of a girl said he needed this, he liked my Facebook photos of HIM not me and he shared a photo of HIM that i uploaded and even set it as his profile picture, then when he told me why he talked to me longer i said, "Oh," and got mad and upset at him and after a few hours I apologized and started using the ;) and the :) to sort of flirt and I asked him how long he liked this certain baseball team and he aaid his whole life and he commented on my thing on my other Facebook account?

What does this mean?

Was he flirting?

Was he trying to get me jealous?

Did he realize I liked him when I said oh and got mad and upset at him?

Does he know I was trying to flirt by using tge :) and the ;) faces?

Does he like me?

PLEASE ANSWER ALL OF MY QUESTIONS THERE'S ONLY 6 OF THEM!!!!!!!!!