Hugh Hefner and his fiancee Crystal Harris won’t be tying the knot this weekend after-all…

According to TMZ:

Our sources — who are all at the mansion — say Crystal and Hef had a nasty argument this weekend on the phone. When the dust settled Crystal decided to 86 the nuptials and quickly moved her stuff out.

The wedding was supposed to go down Saturday. This would have been Hef’s, umm … third marriage.

Damn … we wonder what could have made her so mad that she chucked the deuces on Hef’s old (but rich) ass?!? Maybe it’s a good thing!