"Stalker"

i had quite a scary experience last night (5 apr). i was walking towards my condominium block from 7-Eleven. as i was passing the ground floor of the block, this malay guy in white t and short was heading to the lift and so was i. he was in front of me and his friend was walking in front of him. Hastily, i kept walking behind him slowly and he kept looking back at me me and glanced a few times. so, the lift door is about to close but he hold the door for me and let me in. his friend was already inside and they pushed 3rd floor button and mine 12th floor. and instead of getting off on 3rd floor, he told his friend that he wanted to go up on 12th floor and his friend smiled cheekily. i felt so awkward at that time and he kept on glancing at me making me so uncomfy. as we reached the 12th floor, the lift door opened and i walked behind him and guess what. he walked to the same direction of my unit and to my surprise, he knew the neighbour who stayed in front of my unit. he pressed the bell and i was already unlocking the lock to the front door of my unit and he gazed intensely at me as if he wants to jump on me.