Well, obviously Zeph hadn't know that... It was only a few days fresh and he hadn't gotten around to telling him. So really... he couldn't be mad at his friend. But Claudia? That was a different story.
"Yes, she was my girlfriend... but not now. I can't say that I'm mad at you. You didn't know, but I thought after what we just dealt with.. with you know who.. that you'd lay off the groupies for a bit."