Bear felt entitled to Nikki’s love, and didn’t care how he got it.
He didn’t heed the sales lady’s warning, didn’t try to reverse the spell, didn’t care about her health/hygiene, didn’t tell their concerned friends what was going on, and again, r*ped her first chance he got.
reading the obsession screenplay also let me know that bear was indeed FULLY aware that nikki was not herself while he was engaging sexually with her yet he stills rapes her repeatedly including after the “I CAN BE NIKKI” scene which is FUCKING INSANE??