I think this song is about the guy talking about how he can tell that the relationship is gonna get hard, either because that is how it has been in the past (like it gets difficult during winter), or because he can tell from the signs that she is giving to him. He is saying that he could just ignore the stuff and let whatever happens happen, but that he is instead choosing to "roll up his sleeves" to make the relationship work
I think this song is about the guy talking about how he can tell that the relationship is gonna get hard, either because that is how it has been in the past (like it gets difficult during winter), or because he can tell from the signs that she is giving to him. He is saying that he could just ignore the stuff and let whatever happens happen, but that he is instead choosing to "roll up his sleeves" to make the relationship work