Ralph's appeal comes from him using his blue check to get good guests on and then passing out so they can talk without him interrupting. Everyone remembers Miami and everything streamed during that trip proves that Ralph in person is neither pleasant to interact with nor does he have any humor to him.
This is just generally how Ralph behaves when someone either looks at him the wrong way or he thinks he can either stir up views, both of which happen on a very regular basis over the most inane shit. This isn't even the first time he's behaved like this over JF specifically. The first time was when JF broke with Warski and they only made up when JF went on the Healstream to sing, plus I know they've gotten angry and made up at least one other time since then. Ralph and JF are a Spanish soap opera couple; this isn't the first time this has happened and it certainly won't be the last.