Relationship help!!

My boyfriend and I have been together for almost a year I have recently moved into my own apartment within the past month and ever since I’ve moved and my boyfriend has been accusing me of cheating on him and we have been fighting constantly. No I am not cheating on him I love him to death and he really is the love of my life. I have done everything that I possibly could to prove to him that I love him no matter what and that I don’t want to be with anybody else. And I need help with how to handle these situations and if you have any advice on what else I can do to help solve this problem please comment below.