Do u believe in spells...?

My SO and I have a great relationship however lately we have been fighting a lot. We used to have sex everyday, now it's been almost a week and we haven't touched each other. We can barely stand being next to one another. Long story short, one of his aunts is known to put spells on people, and 99.9% all the spells happen. I never really believed in such thing but I am starting to question whether she did something. I am not a fan of her as she is not a fan of me. Anybody else believes in spells? If so, how do u know if one was put on u? This might sound stupid but strange things started happening with a probable cause.