I don't know what to do

My boyfriend and I have been dating for 8 months, we're both virgins and we plan on keeping it until marriage. Or at least, that's what I thought for 8 months. Today I found out that he isn't a Virgin, and he's telling me that he's sorry he lied but he thought I would think of him differently at the beginning. I don't know what to do. I love him, but I can't imagine being with him after lying to me for so long, and every time I think about it my legs close shut and I get disgusted. I understand that my views might be backwards, but someone please help, from my point of view.