Relationship advice

Is it bad that my boyfriend went to an apartment with his friends and lied about there being no girls there when really I found out there was three girls there that were none of his of his friends girlfriend or friends. He says he done this because he knew how I’d react and that I would get mad for no reason, he told me I have nothing to worry about and he only wants me but then again why lie? It just makes it look suspicious and now there’s a part of me that thinks he could have cheated on me even though i would like to be able to trust him but how am I meant to trust him when he lied to me in the first place. I’ve told him before all I want is honesty.