When they got inside, Kurt recognized a look on his father's face, a very specific look. Kurt had named it, the "My son is gay, you made fun of him, so I' going to slam into you and/or make you feel lousy" face. As Kurt tried to figure out what could blaine do to make him feel bad about being gay, his father sent him away.
"Kiddo, why don't you go scrub your face, ok?" Burt grunted, with very little eye-contact made. Kurt sighed, and rolled his eyes.
"It's a mask, dad." he turned to Blaine, "Goodnight." Kurt touched his hand as he walked away. Before he disappeared, pointing his two fingers at his eyes, and then at his father, he mouthed, "I'm watching you, be NICE."
Burt had his elbows on the dining room table, leaning down, but not looking at Blaine. "I got a phone call, a little while ago. Said it was your dad." Blaine looked shocked, and then his face dissolved into understanding.
"You know Blaine, I like you," then he caught a glance of Blaine's slightly smug expression. "Not MUCH," Burt promised, "But enough to help you with this. Normally when I get calls from people calling people fags..." Burt and Blaine winced, but Burt continued, "Anyway. Kurt likes you. I like you. If I like you, this doesn't happen. Understand?"
Blaine nodded, "Thank you, Mr. Hummel." Burt held up a hand, "Hey, I'm not done yet. Your father seemed upset about you being on a date. I hung up on 'im, before I got to the most of it, but I think it would be, you know, good, if you stayed here tonight."
Blaine's face went to thankful to surprised to confused so fast Burt felt like he was watching a cartoon. "And by that, I mean on the couch, two floors below Kurt. You might have gotten away with it once, but there aren't going to be lots of slumber parties, yeah?"
Blaine was still embarrassed about Rachel's party night. He shook Mr. Hummel's hand. "Thank you, very much sir. I appreciate your concern. I promise I can handle it...mostly." Burt nodded. "Go on, tell Kurt. No funny business!"
Blaine practically skipped to Kurt's room.