The Love Song

I thought this poem was about a man who is haunted by many situations/places/days/times/events. I feel like he is old in his narration and is reflecting either on his life or on his want to go back and change it somehow. I also feel that he is conflicted with many events and decisions he made in his life and is burdened by his outcome. I'm not sure if he is already dead because the end of the poem depicts him drowning. I think he may be dead the entire poem and in his after life he is burdened by his wrong choices he has made.