It IS possible to be best friends, don't let anyone tell you you can't - my best friend for years was a single man, he and I both had our own relationships but I knew that he was always there for me and I for him, we had a lot in common and we got on very well, although having very different backgrounds. However - you have to lay very clear ground rules, no kissing (apart from greeting on the cheek), no sexual undertones, no assumptions being made by your friends that you are a couple. You have to set and agree those boundaries. As we did, we could meet and go out, with no misunderstanding - sometimes I stayed at his, sometimes he stayed at mine for the weekend, no problems. It was so good - we see each other less now, we live very far apart and both have settled marriages - but we are still very good friends and our families know and like each other, there are no misunderstandings. He would still be there for me if I were in deep trouble. I know I have been very lucky!