i agree! i appreciate the sentiment and still find it cute but the phrase "i need you" makes me a bit uncomfortable because it makes me feel like they're becoming dependent of their partner and i think there's a difference between depending on your partner and being dependent of them in your life, yk? idk if i'm getting my point across, i'm not very good at explaining myself,,
But, no one actually truly needs another person, you get what I'm saying? Everyone we know and love will one day leave us and we gotta move cause that's just life. Despite knowing that, saying I Want You means you're acknowledging that future loss but you'll still choose them. It implies agency, while I Need You takes away agency and just seems like something forced and inescapable. But, ofc we all have our own preferences so you liking I Need You is totally fair! For me, I Want You is just more impactful, that's all.
I did get what you meant, but I still stand by my comment which says that no one actually needs another person. We humans are social creatures who need the company of others, but it doesn't have to be anyone in particular. 'I Need You' is just a false statement, whereas 'I Want You' is true and much more romantic imo.

But my own little preference~ I find it much more romantic when a character says 'I want you', as opposed to 'I need you', because that implies that they'd choose their partner willingly instead of being unfairly influenced ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄
Whaddya guys think?