Defrost

When you revisit people who used to like you and decide to give them a chance to date you.

Becky: "Wow, Is Jocelyn dating Andrew? I thought they were just friends."
Karen: "Because of Covid, Jocelyn decided to defrost Andrew"

ex-almost

Ex-Almost: Someone who called you baby and were cute with you around your friends — but then there’s the fact that nothing ever followed through. This is what enables us to feel so torn in admitting that no, you didn’t date, but you still kinda feel like you ought to call them your ex.

"Who's that?"
"My ex-almost, we hooked up every week for a month but nothing went past that"