<human>: Can you summarize the given text in a few sentences?

[Puppyland](
Backstory: The whited out part is my girlfriend, the douche is her ex-bf. She knows that I don't like the guy but I have tried to remain respectful, give her her space and let her remain friends with him without harassing her about it. Lately he has been hitting on her non-stop mainly through facebook wall posts. These are messages that he sent her today and this is the first I hear of him directly speaking of me to her. I was not prying, I was checking my twitter and she tweeted a link to the screen cap at a mutual friend and it appeared on my twitfeed or whatever that thing is called.

Question: How do I proceed? The guy is in Italy, I'm in Philly for another 2 months and she is in Brazil. I don't want to be a douche, or a controlling boyfriend or an anything like that, but I think now it's gone too far. I let the constant hitting on her slide by just mentioning when it annoyed me most, she says she talked to him but he keeps on doing it and there is nothing she can do. What can I do reddit? I already posted a picture of a cure puppy on her facebook wall just for shits and giggles and after taking a couple deep breaths his rant about puppyland is kind of humorous. But I feel like there is something I should do, just don't know what it is that will work best.
<bot>: gf's ex-bf keeps hitting on her, now he is openly targeting me and I don't know how to proceed