But this also means they are likely invading both Toulouse and Provence against the Raimondins and the House of Barcelona.
I suspect there would be a war over her prospective marriage in the first place, whether before or after depending on whether she still marries Louis. Louis married her because of Aquitaine was the most profitable region of "France" at the time, and a foreign king/emperor is a lot different compare to another Vassal like Henry II.