So the main reason behind these fights

The reason is BB himself as from day 1 they r giving task & dividing team on basis of frnds I mean all frnds in one team which create more fights & this is first season of bb where continuously happening it as I have seen so many seasons where they had make team with those who don't like each other or would I say not frnds like "Shilpa & hina" Romil & Deepika many more..but in this season bb making team like that jisse or fights ho rhi & I think bb have to change it..