Does he like like me?

There is a boy I really like I've liked him for three years and he acts like he likes me but idk. So I came on here hoping you guys would tell me what you think k so here's the situation. He is so cute and and funny and smart and nice. As you can tell yes I have a crush on him we talk about everyday and just today he scooted as physically possible to me today in art and put his arm around me and in math he asked to shake my hand and I'm like ok sure and he kissed my hand and I allowed him to do it next hour in agg. And at track practice he helped he practice hurdles and I fell down and he didn't even laugh he's freaked and he was oh my gosh are you alright? And I'm like yes I'm fine even though I did hurt my knee. And he's held my hand sat next to me at lunch he's asked to clone me(long story) and he's great and I think he likes me he's not a flirt he only does this too me it's just he has a girlfriend. Idk how serious they are and all that but I really like him and they've been dating a few monthes so idk I was just wondering if you guys think he likes me thanks so much and bless you