My teacher flirts with me...?

My maths teacher is really cool i get along great with him hes one of my fave teachers.. About two months ago my friends were saying how he treats me different to everyone else and how he's always in a good humor when i'm around, i never really noticed but now since they've said it i'm noticing it a lot! He never gives out too me in class, if im talking to someone he will shout at them not me even if they hadn't said anything. He would always make eye contact with me in class or stare at me as i do my work and tease me sometimes. He always lets me text in class too, like if he see's me with my phone out he will just tell me hes not stupid he knows im texting (in a joking kind of way) but he would take other peoples phones off them, In the hallways he would stop me too talk about absolutely nothing or else just give me a big smile if he's in a rush, and he always finds some way too touch me, when i ask for help he would take my pen off me but feel my hands while taking it or touch my shoulders back arms. I could be imagining this but when i talk to boys in my class he seems a bit jealous if they're kind of flirting with me, i'm really close with most the guys in my class and they would randomly hug me or whatevs but he seems to be a bit grumpy when i do and doesn't let me sit beside a guy Jordan in my class because we 'Flirt to much' during class? But i kind of like the attention i get off him? i like joking around with him and teasing each other? Could i just be one of his favorite students? or do you think there's a bit more than that going on?...