Wasted my chance on this girl that's in an abusive relationship?

We all worked in the same place and the abuse was pretty clear to everyone.. Mostly happened outside ofc. He stresses out alot. 5 months where we'd see eachother all the time and not once did I see her happy other than a forced smile with him. It's like he was mad at her all the time and I'd always see him stressing because she apparently looked at someone or whatever.

I hated looking at that so I tried to be visibly nice to her when i had the chance. She liked it. She'd blush whenever I was nice to her (tho at that point she'd blush at anyone who was nice to her) I'd catch her looking at me, id catch her try not to look like a loner when I was around. But I never did a thing. I catch feelings so fast and I honestly would have done anything to take her out of that relationship. But I did nothing. Anyway, things changed and now I see her happy walking with him. Jesus, I'll never understand why things work this way. But I guess this is good.

Had to take this out. Maybe my anxiety protected me in this situation by not letting me upproach her, but I also wouldn't give a fk about the consequences. She needs better. Unfortunately, it's not me