Omggggg please help! part 2?

my friend was talking to jeremy and said " you like sadie ." he just smiled and blushed and rolled his eyes. Then my other friend said to him when I wasn't there , " there is a rumor going around that you like sadie." He started freaking out and said "ew no!" He was blushing and smiling. Then my friend said to him '' your face is red ! " he said '' well it's hot in here ." What does this mean?!? thanks in advance !