Bnet minimizing any game i'm playing that isn't WoW

Bnet keeps minimizing my games outside of WoW or other Blizzard whenever i get a text from somebody using bnet, and it’s literally infuriating. :angry:

I could be having a golly good time in Far Cry, and all the sudden, BAM!! it’s minimized, but Bnet just alerts me saying i have a message. Or i could be playing some other online game in the heat of battle, and thanks to Bnet, i died when i alt tab back.

Like, why can’t we disable this?

I only have it running when I wanna play WoW. Otherwise it gets closed.