All mixed up

Hi I am new here and all mixed up.lolll . I have a boyfreind but i have the hots for this guy at work who also has a girlfriend.. We get along real great. The problem is i dont know if he is flirting with me or just wants to be friends. I have not been flirting in about 12 years so im all lost right now. Before one of his familly members got ill he use to come with me afterwork to the ranch to see my horse and stay with me for about 2 hours then go home..THis went on for 4 weeks 2 times a week. he called me once and told me he wanted to see me but then familly called him and he had to cancel. Im all mixed up now. We joke around at work and that does not help. He has not came to the ranch with me for about a week and a half now.. I am usually not a shy person but with him i am.. I just want to try and kiss the hell out of him but hell im too shy to do that to him.. HELP.. I really do not know men anymore..