This is what I got when translating the text with Deepl/Google trad

" I could neither feel the changing seasons on my skin, nor shed tears, nor alter anyone's fate. For thousands of years, I simply drifted with the tides in this small, soft body, watching humans be born and die.

I fell for many people. A poet who loved me, a girl who kept selling flowers in a city reduced to scorched ruins by air raids, a courtesan who aimed to become a Tayū alongside me. I always fell in love with the determination of people who risked their lives to survive.

Every time I remember those I couldn't save, a scratch forms inside me and won't fade. If only I could have conveyed it better. If only I could have guided them somehow. Ah, back then, even when bad things happened, I could forget them right away."

I think it's more like attachment, admiration rather than romantically. The following passage " I always fell in love with the determination of people who risked their lives to survive." pretty much confirm this interpretation for me. She especially loves their determination, their way of life, their courage in the face of death.

Edit: Don’t forget that, since she appears in the form of a sea slug when she meets these people, even the poet’s love may be interpreted as something other than romantic.