He cheated on me during his deployment 👀

My boyfriend has been deployed since December , A girl has told me that he has been texting and calling her telling her how they will be together when he got home . He also told her about our relationship problems as well, I do love him but he already know I have the worse trust issues so if we were to get back together it would be terrible because the trust is not there. He keeps texting me but I finally blocked him, I honestly don't know what else to do!