There is a thing humans do called "telling them directly ". U should try that

If you are rich enough, pay for a billboard company to hang a big ass billboard that says I love you. 3 billboards......

You dont need to do that bruhh

You can show her you still love her by showing her that you becomes a better person which you weren't in a relationship with her.

Ex bad gf bad wife ahhhhh Nigga love your self you don,t pay for it😤

There is a very low probability she will be with u again And why yall break up if u like her

I know it's hard for you to do but tell her you still love her. And if she doesn't believe you try to show her. It's worth trying don't you think 🤷‍♀