Very confused about relationship

I am 22 years old and I have been with my boyfriend for 8 years already. Well we got engage last July 2011. About a month ago he confessed to me that he use to like this girl from one of his classes in college back in Fall 2009. He says that this was going on for one semester only, he never called her on the phone, went out with her, or talk to her other than the times he was in that class with her. This class was twice a week for 4 hours. He confessed to me that he really liked her and promises me that nothing happen, why would he hide it from this long? If nothing happen why would he hide it? After he confessed to be this, he also confessed to me that he did drugs for over 2 years and decided to stop when he proposed to me. He said he started in 2009 and stopped summer of 2011. I got scared, all this time I was with him, he was doing it behind my back. What should I think now? I still love him a lot but a part of me feels so much distrust towards him. He hid this from me and now I am confuse. Why would he finally come to me with the truth? I want to move on with him but I do not know what is best at this time. Help me.

Hey darling~ Honestly, for all your doubts, worries, and troubles, you must go speak about it DIRECTLY to your boyfriend. Nobody else will have the proper answer for any questions you have for him because we cannot read his mind. I know that you're worried about what else he could have hidden from you, but it sounds to me like he's been cleaning up his act for you, that he's coming clean about everything and letting you know what he's done and the best thing about it -- he's being HONEST. Or at least, he should be. From what you told me, it doesn't sound like he has cheated on you, and that he's a good guy trying to get a clean start with you without any secrets to begin with the marriage. I mean, wouldn't you have hated to have found this out after getting married to him? So I'm really happy he was able to tell you -- on his own -- about his past, so that you both could accept it and move along. I mean, we've all done things in the past that may not be socially acceptable to say to everyone, but he confided in you in trust that you'd still accept him even after it all. Just be sure to ask him to not keep any more secrets and such if you plan on being married together! You could also try putting yourself in his place to see what you would do, and to put him in your place to see how he'd react. It's very situational depending on what side you're on, and for whatever reasons it may be, it probably would've ended up the same anyway. The fact is though, at least it's out in the open now. So embrace his honesty and try to make something good out of the situation if you're going to be with him anyway. You can either suck it up and move along, or dwell on this and let it destroy your relationship. Yeah, that was me being blunt about it. Anyway, good luck, if anything let's talk more!

To HELLO, I appreciate your advice. I know I shouldn't fuss over something like this.It is just a little hard. I used to ask him if he liked someone else or if he did drugs before and he would deny it. I think I am more scared that he would lie to me again. Having in mind that my parents are going through a seperation because my dad had another son my mom didn't know about. He hid it for 6 years. I know it makes my problem look really small but I wouldn't like it to end up like my parents.

Hey Yu~ I'm sorry to hear about your parent's separation and what happened that you fear would be a repeat to you. Go have a talk with your boyfriend and tell him that it is a VERY important policy that he be completely 100% honest to you about anything regarding his loyalty to you in the relationship, and whatever else you worry or fear of. If you're going to be with him in the long run, you might as well get over the fear and trust that he won't do it to you. If you constantly nick and pick at his motives, it may annoy him,therefore drive him away from you and end up doing it anyway, and you wouldn't want that. So just put your faith in him if you're still going to be with him anyway. Also, this fear of yours may carry on to any other new relationship you have with a guy, wouldn't you think so? So just put your faith in him. He should know how much it hurts and pains you for any lies, but be grateful that he's coming clean about his past, and that if he has anything else to say, that he should tell you right now before anything else. It'll be alright.. But if you're really sketched out, you can leave him and find someone else. Life goes on either way~ :3