I used to work in an 'all-male' environment and had a few really good male friends. We would often go out in a group after work, snooker, meals, pub etc., and sometimes just me and one of the blokes. I had a boyfriend at the time who was fine with it and we all new I wasn't interested in a relationship with any of them...or so I thought. When I split with my ex and met my (now) husband, one of the blokes I got on most with starting acting really strange and was often quite nasty to me. It all ended in a huge row and we never spoke again. One of the other lads told me that my so-called mate had been hoping to get together with me for years and I had just never realised. I went to work elsewhere and didn't have any contact with him, then bumped into him again a few years later and, thankfully, we just chatted as if it never happened. I'd say, just try and make sure you both know what the other 'wants' from the relationship. Good luck!!