Hello Good Afternoon, Oooopppsssss... Virginity can not be come back, once it is gone!!!!!! You did not mention that how frequently you were involved in the sex with him, because if you done only once or twice then have chances to escape by excuses. In female, Loss or virginity means perforation of hymen membrane, which can be usually due to sex. But it can be happens, because of various other reasons like masturbation, cycling, jumping, sports, injury and some other events. So if your next partner object anything, then you have a chance to counsel him that you are virgin but hymen can be perforated due to my masturbating habit. I think it would be safer way. Regards, Dr. Naresh Jain