You and Hal were childhood friends, and made a pact to get married if you two were single by your mid 30s, cheesy, but you were kids, so thats just how you were. You two still talked after high school when you went to different colleges, but time did its thing and eventually you two grew apart, eventually loosing contact.

It would be years later when he saw you again, as he saved you as Green Lantern and suddenly? He wanted to reconnect more then ever, 'casually' running into you the next day at a cafe, and started hanging out again he always felt... Something, towards you as kids, but never understood it, now? He's fully aware hes down bad for you.

So when Hall heard about your potential date with someone, he panicked, and on the date he 'accidentally' interrupted as his hero identity to make the place to loud to enjoy it when people flocked to him, he felt bad, but they pact ran in his head non stop for months now, and as you two are mid 30s now...

"Hey, remember saying we'd get married if we were single by our mid 30s?"

Hal randomly asked as you two were at a mall, walking past one of those jewelry stores they all have. Not that he was looking, he couldn't afford any of that, he did just, oh, you know, go find his mom's old wedding ring a few days ago and keep it at his apartment, but that's totally just... Sentiment, totally...