Dont know on where you do get those price sentiments about XRP yet it isnt dumping but rather going in greens at the moment.Talking generally when it comes to price correlations
then its no surprise that there would be some alts that will be heavily affected when bitcoin is on the moon.It wont be anytime going along with it but rather going to the opposite
direction.We can assume that people who had invested on a particular coin will withdraw up all of their holdings and would be switching up or converting it to bitcoin.
So in that case then that can really cause up  some opposite trends between both markets. Coincidence? No, its just a typical thing where you can really see.