i kind of agree with Seewa - i think it's less about the protagonist ruining a relationship, or looking back on it, but more about the girl burdening him.
"all nereids beware" can maybe be saying to beware of the girl, since the nereids are always friendly, and she's apparently not for what she's putting him through.
the whole, "take these misunderstandings" part shows the burden she's putting on him. like, she can't let go of whatever happened between them, and he's almost begging her to. "it's hard enough to live life as it is" without her shit.
"if the wind were down, i could drive the boat with my sighs"
this part can also represent the burden. the wind representing the troubles he's having with the girl, and him driving the boat being him moving on. basically if she'd leave him alone he'd be able to move on.
i kind of agree with Seewa - i think it's less about the protagonist ruining a relationship, or looking back on it, but more about the girl burdening him.
"all nereids beware" can maybe be saying to beware of the girl, since the nereids are always friendly, and she's apparently not for what she's putting him through.
the whole, "take these misunderstandings" part shows the burden she's putting on him. like, she can't let go of whatever happened between them, and he's almost begging her to. "it's hard enough to live life as it is" without her shit.
"if the wind were down, i could drive the boat with my sighs"
this part can also represent the burden. the wind representing the troubles he's having with the girl, and him driving the boat being him moving on. basically if she'd leave him alone he'd be able to move on.
i don't know - just my thoughts.