1)
Why did he complain about the Kohen? The Kohen chose to leave!
1.
Malbim: Had you not taken the Kohen, I would have made another Pesel.
2)
What is the meaning of "u'Mah Li Od"?
1.
Rashi: What remains to me?
2.
Malbim: I have no concern to lose more than this (you took everything).
