system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do people often find a physically "unattractive" person, more attractive the more time they spend with them?
gpt
First you have to understand attraction.

So, the reason people are attracted to others is based around chemicals in the brain. You see a physically attractive person and your brain goes "I like that, here's some drugs, keep looking that way."

Now when you spend time with someone, perhaps they make you laugh, perhaps they smell good, perhaps they're very stimulating in other ways, your brain will release the same drugs. Even if you're not physically attracted to the person, you can still develop an emotional attachment.

Emotional attachment isn't immediate and takes time to develop while physical attachment is immediate.