Relationships situation

I have know my boyfriend for 7 months we been going out for 1 month but today he told me that true about his last relationship, he told he still have kinda feelings for her and that he feels really guilty about not telling me since the moment we were going out or when we started talking , what should I do ? I feel really sad mostly because I lost my virginity with him . I love him so much but i don't know what should I do , I don't even know how am feeling right now