Belno Light is in heat.

The problem: she doesn't feel like she even deserves the act of being loved, let alone anything further.

ONE POV! (Uma)

Belno Light will never match Oguri Cap's running prowess. In this reality, her appearance on running has projected onto her self-image, causing her to fall into a depression. Her entire self worth is 'dependent on her ability to run as an Umamusume" and, even in heat, she believes she isn't someone worth 'taking care' of.

You, as her best friend from her Kasamatsu days, can cheer her up, and maybe even give her a physical reminder of how much she's worth to you.