It sounds like in some ways you may have cold feet and aren't ready to settle down. Whether you're straight, bi or gay -- it seems like you need more time to figure yourself out

Try kissing another guy, if you feel the same way you do when you kiss another girl, then it's just that sexual excitement you get with new people. It won't feel the same after a long time, even ifee them every day, that excitement wares off. You have to try to keep it alive, do something new, go out together, experiment in the bedroom.
Hope this helps some ^-^

The most important thing in a relationship, especially if you're engaged, is communication. He should already know you are bisexual, but he needs to know how you are feeling. It might not be comfortable, but it would be even more uncomfortable if you both let this go for too long.
It's just my opinion, but you should always share everything with each other when you are trying to be in a committed relationship. Maybe you should take a break or something and figure yourself out. I don't think people should get married before they have went through the process of finding out who they are and want to be and it sounds like you need a little more time to do all of that.
Once again, it just my opinion. Maybe someone else will give you some advice you like better and you can take it, but I just believe fully in communication as the best way. Be honest.

Well :/ Seems like ur not "bisexual" anymore.. i guess u turned on to be lesbain !! and if u want to make everything with ur guy u have to think of him ONLY !! And remember that u loved him first.. it happend to me for a while and i became lesbian but i got back to my self again.. my advice to u is to hang with him as much as u can.. kiss him.. make out.. it might help.. i hope u make it through =)

I went through this for a while with an old boyfriend, he already knew I was bi. I was honest with him when I developed feelings for one of my girl friends and he was upset at first but he then said he's was glad that I had told him, we broke it off and we are still friends. I followed my feelings and not what my head was telling me, you might just be curious so talk to your man and do what you feel is right. I hope this helps

If you're going around kissing all these people while you're engaged, then the relationship must already have been beyond salvaging.

I'm like you, I'm currently in a similar situation where I kissed a friend a couple of weeks back and although she did it to experiment - because she knew I was bi - I've now developed feelings for her. At the time I was dating a guy I was crazy for, completely head over heels...but bam! One kiss with her and the next time I kissed him it didn't feel the same.
It's incredibly confusing and I felt guilty that I was feeling that way, because I still loved the guy. But I made the decision to step back, to tell him and I feel that it's helped me a lot. Since then I've questioned myself a lot, but the only way you can find out if girls are really your thing is to experiment. I already knew I was bisexual - but maybe you need to find out whether your preference is for men or women?
I hope this helps, I really do. Good luck xx

I'm like you, I'm currently in a similar situation where I kissed a friend a couple of weeks back and although she did it to experiment - because she knew I was bi - I've now developed feelings for her. At the time I was dating a guy I was crazy for, completely head over heels...but bam! One kiss with her and the next time I kissed him it didn't feel the same.
It's incredibly confusing and I felt guilty that I was feeling that way, because I still loved the guy. But I made the decision to step back, to tell him and I feel that it's helped me a lot. Since then I've questioned myself a lot, but the only way you can find out if girls are really your thing is to experiment. I already knew I was bisexual - but maybe you need to find out whether your preference is for men or women?
I hope this helps, I really do. Good luck xx

I know that I am psychologically attracted to men (they tend to have similar interests), but physically attracted to women. I always prefer kissing girls, and I think they're more attractive and beautiful. I am dating a fantastic guy--sweet, funny, understanding--but I can't help but want to sleep with women. I restrain for his sake (and yes, he does know), but it's not going to go away... and I'm okay with that.

It easily could be the excitement of kissing a girl rather than the actual act of doing it. You kiss your fiance all the time, I assume. It gets dull, no matter what anybody says. You might examine your options, and who you are. Ask to put the engagement on a hold if you have to. You don't want to get married and figure out that you're a lesbian--unless of course, you have and open relationship, or want to have a family. A lot of gay guys marry just to have a family.

As for kissing other people while you're engaged, there's nothing wrong with it. Kissing is a fun party trick, and there are a lot of reasons for kissing. If you are among a lot of people, or it's just a peck, it's okay, but if you go to a back room to be alone with the person, then it's approaching being unfaithful.