You loved your fiancee, and you still miss him. But you love your new fiancee. A year is plenty long enough to get over him. You shouldn't feel guilty for finding someone else after your old fiancee. Love comes when we least expect it, and if your old fiancee really loved you, then he'd want you to be happy. It might be a good idea to talk to your current fiancee. Tell him about your old one, and that you still miss him, and he should comfort you. The best comfort comes from someone you love, not from some random people on an online forum. You need to hear your fiancee to say that he loves you, and that he understands that you miss your old one. Trust him with your feelings. If you need more time, then I'm sure he'll understand if you want to postpone the wedding for a while. Just don't go into this marriage without heeding your feelings, because then you might regret it later on. Be sure you're ready first.
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Modesty is one of my many admirable qualities. If you need
to talk, even just to get something off your chest, PM me.