Imagine these cute headcanons...

-Thrushpelt and Bluestar playing with Mosskit in StarClan.

-Brightheart having a heart shape on her forehead and when she lost half her face half of the heart disappeared. Then it reappeared in StarClan when she met Swiftpaw.

-Sunstar confessing his love to Moonflower and becoming mates in StarClan.

-Transgender Ivypool coming out to Hollyleaf, and Hollyleaf coming out as Skoliosexual to Ivypool and confessing their love for each other.
(Skoliosexual describes a potential sexual attraction to non-binary identified individuals. This does not generally describe an attraction to specific genitalia or birth assignments but rather is an inclusive term.)