She’s blocked. He clicked to block her. That’s why he can’t be found at all. Blocking is easy and simple and if he knew she was facebook stalking him, he probably did it because he didn’t want her in his business. Depending on his age, this can be appropriate and inappropriate. If he’s young enough to need monitoring, she needs to take away his computer privileges until he can share. If he’s old enough that his business is none of hers, she’s going to have to deal with it. In the meantime (if he’s young), if she creates another account she should be able to see what it is that he wants to hide as long as he has fairly open privacy settings (a mistake) and doesn’t have everything set to “friends only” (a better idea).
My own mother is on my friends list, but has no access to anything. I figured it was nicer than blocking her and lets her think she won without her actually being able to see anything or stalk me at all. Then again, 26 is more than old enough for your facebook to be safe from your mommy. And your boyfriend’s mommy who has the same restrictions. ;)