Dating Co-Workers

Hey guys! I just wanted to have a discussion or see what you guys have been through as far as dating co-worker. I’ve been at my job for a year now. The first six months of me being there, I had a boyfriend (M) outside of work. We broke up around October (so I suppose more then six months). Around the time that we were not doing so well-in September-this guy (A) and I started to talk more and became decent friends. Eventually, my boyfriend (M) and I broke up. I was down for a bit and the drama went on until early January. During that time, the co-worker (A) and I started to become the talk of the town at work. We were everyone’s concern and everyone thought we were so cute. In mid January, A and I started dating...nobody knew. As the months go on, our relationship has developed so strongly but now people are acting super jealous. We aren’t letting that bother us even the slightest bit but I am a very doubtful person because I like to consider the things people say, along with my thoughts and feelings. So many people keep saying that work relationships don’t work out, but him and I have so many plans. We’re in love and we get each other better than anyone else has ever. We’re almost the exact same, we have very few differences but we match and we’re strong and loyal to each other and we only see each other. Am I wrong for considering what they’re saying even if I don’t see an end to this? I’m just trying to protect myself even if it does end, but neither of us even consider us breaking up. This is one of the most successful relationships I’ve had with ANYONE (friends, even family members) in my life, literally. Why do people say dating co-workers doesn’t work out? I just want to know.