boy advice please :)?

im just looking for some friendly advice from guys and girls. i know this isnt much of a big issue or anything just dont wanna make things awkward so please tell me your take on the situation without being judgemental.

So ive just been talking to this guy on facebook. i have a thing for him and he is really hot but also very shy. i dont talk to him much and last friday i just started talking to him by saying "your hot :)" and we ended up had a really good conversation but then when i tryed to talk to him last sunday he kept not replying and said it was because of fb on his phone. then on this friday night i messaged him after not talking to him since sunday saying he had a hot name and he never replied. Now what my question actually is, do you think he saw the previous message or his fb was stuffing up? and i should start a conversation off by acknowledging the previous message by saying "sorry for making it awkward before" or something, or just ignoring it and just saying hi??

thanks for reading :)