Responding to your boyfriend's compliment in a cute and affectionate manner can be a great way to continue the positive interaction and show your appreciation. Here are some sweet and playful responses you can consider:
"Aww, thank you! You're pretty cute yourself, especially when you call me that late at night."
"You know just how to make my heart melt! You're the sweetest, babe."
"And you're the one who's making my cheeks blush with your adorable compliments!"
"I can't help but smile when you say that. You're the best, love."
"Right back at you, cutie! You always know how to make me feel special."
"Well, it takes one to know one, doesn't it? You're the cutest boyfriend ever!"
"I love it when you call me cute! Makes me feel all warm and fuzzy inside."
"You're the master of making me feel cherished. Thank you for being so sweet!"
"I'm lucky to have a boyfriend who never runs out of compliments. You're the best, you know that?"
"You're my late-night cuteness booster! Thanks for making my day, even at night."
Remember, the most important thing is to be genuine in your response and to reflect your own feelings. Use the above examples as inspiration, but tailor your response to match your personality and the nature of your relationship. Embrace the affection and keep the positive energy flowing!