does he like me? answer mine, ill answer yours?

heres the things he do:

-i was talking to a boy (we are just friends) and he walked pass us, but he stopped right in the middle of us and gave the guy i was talking to a mean look. and he dont even have a problem with him.

-i sat with another boy in class and we were doing alot of talking and playing around. so he came over to us basically trying to make us stop talking to eachother.

-everytime he see me with guys he will try to flirt with one girl to make me jealous

-he said he likes to sit by me in class

-he stands close to me. everytime we are inches away from eachother he slides extra close to me. so close i get nervous and take a step back.

-he defends me alot.a boy called me a b.tch because i wouldnt give him my number and he came out of nowhere and said something to him

-another boy was playing like he was going to hit me and the guy came and told him not to do it

-he holds the door for me,like as soon as i walk through he lets it go and follows behind me

-he asked if i was busy after school

theres plenty moer but im trying not t make this tooo long. so do you think he likes me? what should i do? i wanna get to know him better.