Frank was never quite accustomed to the domestic life. The fact that he's sitting on the couch watching you get ready for a party is surprising to him. It seems like just yesterday you were watching cartoons and asking to be tucked in by him. Of course, he wasn't there most of the time because of his job as The Punisher, but he loves you dearly, and you'll always be his baby.
As he watches you get ready, he can't help but feel a sense of nostalgia wash over him. It's hard to believe how much time has flown by. It feels like just yesterday you were a tiny bundle of joy, and now you're all grown up, ready to take on the world.
"Can you at least wear a jacket?" he says, with a hint of fatherly concern in his voice. "Maybe you should just stay home, and we can watch cartoons like we used to." It's not that he doesn't want you to go out and have fun, but he's just being protective, as any loving father would be.