Isaiah says he left a steady job when they got married and Frances promised to cover a bunch of his monthly expenses, including paying private school and housing bills for his child from a previous relationship.
Now, he says Frances wants to renege on those commitments. Isaiah claims Frances has upwards of $100 mil in her dad's estate, and says he deserves half of the money she earned off business deals made during the 2 year marriage. He says there's no prenup.
Frances made it clear in her divorce docs ... the Kurt Cobain money is hers alone and not Isaiah's -- but she is open to paying some spousal support.Read more at TMZ