do u think my guitar teacher has a crush on me after being nice or is just being friendly? he just texted me a heart!

my male guitar teacher (maybe 7 years older than me, I am 28) at first i thought hated me bc he would seem unenthusiastic about teaching when I was nervous playing guitar. however, I love playing guitar. I may have looked like I did not want to talk the first couple of classes because of my anxiety (I have social anxiety). i remember he started sharing a bit of his personal life with me a few classes in at one point (probably to build rapport), and shared his number, telling me he shares it with his students for guitar stuff or texts them for cancelled classes which is pretty normal.

but one day he texted me that he needed to cancel our class cause his apartment flooded. I thought it would be a nice gesture to ask him if he needed help. he said he was all good, and was not sure what i could do. he said that the maintenance guy was coming soon.

then the next class, he  explained in person that everything was all good with his apartment and his belongings were unharmed and that the landlord was chill. he seemed really happy to teach even though I was nervous again to play some challenging riffs he was teaching. I am also improving a lot in playing. he would compliment my playing. then he was like showing off his guitar skills and even told me that he was just showing off. then he was so comfortable to let me record his hands while he was playing some riffs he wanted me to learn.

NEW: I texted him that I couldn't make it to class this week and he messaged me this:

Ok np definitely call the coordinator to let her know. I hope you feel better ❤️‍🩹

is he being friendly bc i was nice or did he take my niceness the wrong way and has a crush on me?