How to let a guy know theyre being horrible in a subtle way?

so i can't go accusing but is there anything i can say infront of them that will be affective? basically theyve been blanking me for a week (already posted about this) after we really got on (see previous q's) and i dont know whats gone wrong so its really bugging me..
How to let a guy know theyre being horrible in a subtle way?
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