Out of curiosity, are you a guy or a girl? I know a lot of guys put a significant weight on looks. Either way, wanting an “attractive partner” is different from wanting a partner you are “attracted to”. Everyone has their physical preference, and that’s fine.
Personally, I don’t put a huge weight on looks; looks come and go. I become attracted to someone based on their personality. There were some guys I’ve met who were objectively not the societal mold of “attractive,” but who they were as individuals drove my attraction to them.
What happens if that “attractive” person you were into got their face burned, got a spinal cord injury, or went through some major physical trauma? Would you no longer be into them? That just showed that your love for them was conditional.
I do believe an aspect of maturity is knowing that when it comes to finding a life partner, other major qualities need to be considered. Physical attraction is dynamic, it can come and go.