04:23 PM on 01/27/13
I think the song means that they're so in love and comfortable with each other than she doesn't mind it when he plays video games, even when she's there. It's like a higher level of love, or something, she's trying to say. Those things don't bother her.
At least, that's what a girl I was dating told me it meant to HER when she showed me the song before it became famous.