Just want to ask your opinion on this...please advise

I have a male friend whom I considered as my bestfirend. Believe it or not I'm fifteen years older than him. We known each other for more than five years and that years of friendship is not always good. We have lots of arguments on certain issues but found ourselves friends again at the end. I never thought that I would find someone who thinks and dreams exactly like me. We have lots of things in common. Our common friend would even comment that we have the same attitide that's why we blend and fight at the same time. He is not involved to anyone but he has female friends and honestly sometimes I feel jealous and insecure in even over their text messages. We often see each other. We are in both line of profession. I'm very close to his family. We share each others problems and dreams. In every situation that I am in he is the very first person I would turn into and the same thing to him. Maybe you would think that I'm the one who's adjusting in this frienship....maybe at the start yes but throughout it's NOT. everthing came out so naturally. We're too comfortable to be with each other. My problem? I'm afraid to lose him. I even told him about this fear and told him that I know a day will come he will have a girlfriend and I hope that when this day comes I'm not around anymore. He would tell me that I don't need to re-marry (I'm separated with kids) that i'm raising my kids well (my kids and him are also close). I just want to prepare myself on what might happen in the future but as of this day he is not courting anyone (based on what I know) no tunless he's not telling me. I don't know can you please help me. I even told him that he is my soulmate. Do you believe in that? would it be possible though we have age gap?

Jade

Thanks guys for your insights. Our frienship was really PURE. We go out watch movie, have lunch or dinner together, had vacation but we never had SEX. That's why I know he is not using me for something and honestly this guy as a true GENTLEMAN and a very INTELLIGENT one also. Anyway thanks a lot. I'll follow some of your advise like, DON'T WORRY FOR THE FUTURE AND ENJOY THE PRESENT!