Abusive or paranoid? 😰

Hey guys... I don't know what's going on anymore but I feel like my relationship isn't going so well anymore. 
My boyfriend gets mad at me very easily now when I don't text him for like 5 mins and he automatically thinks I'm cheating or something and starts to guilt trip me. 
But then he starts being all cute and lovely dovey... Am I in an abusive relationship? Am I being used!? 😰