What does this mean?

They'd say it because they're an asshole or don't think at all before they speak and still an asshole.

It's a childish insult not worthy of extra consideration. It's like telling a sibling that Mom found them in the trash. It's dumb.

What does it mean? It means you're better off without that person in your life.

I'm sorry someone said this to you. I don't know what it takes to think any sexual contact ever, even if violent and non-consensual, is a blessing but I hope all of us here never get there.

Sounds like vindication of why they are an ex friend.

It means she's immature and weird

This was an appalling thing for them to say, let alone for you to try to fathom. No one deserves to be SA'd, so how can there be a metric for being "good enough" for it?

On that line of thinking though, I have to wonder if this statement is some kind of weird projection or coping mechanism. Maybe this person experienced SA and was working through very complex emotions resulting in a warped rationalization that they were "good enough" to be victimized in that way. A twisted attempt at recapturing the power they may have lost with misplaced "pride" in someone wanting to SA them.

I don't know though, definitely conjecture on my part, but regardless of how they came upon these beliefs, they had no right to project that onto you. Good to hear they're an ex-friend.