Is this guy....INFATUATED? DESPERATE? HOOKED? (easy 10 pts for best answer)?

So i was tutoring this little boy at his house as part of my tutoring job. His older brother (who i never saw before) kept on staring at me from the cpu and evrytime i caught him, he turned around. Then after a while, he sat across from his little brother and I & just watched us. Later on, he started asking me questions like how was i trained to tutor and etc. Then he asked me how old i was and wen i told him i was 18, he said that i was very mature for my age. Then we started talking about the jobs we had and skool and stuff and he umed that i had a bf. When i told him i didnt, he asked do i choose not to have one? As I got ready to leave, he came over and gave me a hug, but squeezed me close to him (his hand on the top of my ), rested his chin on my shoulder, and hugged me for a few seconds, then let go of me slowly. He opened the front door for me and said he was going to walk me downstairs. But when i turned around, he closed the door, said something to his little brother, and pushed him out instead. Do you think he has a crush on me? Or is he like this with every1? Why would he send his brother out to walk me instead of going himself?