There's this colleague of mine who is married. we've known each other for almost 2 years now and been good friends. he is one of the very few men who've had a positive influence in my life. our relationship has been platonic throughout though i could always sense he had attraction for me. other people used to pair us off because of our strong connection but i would always nip such talk in the bud. he however seemed unaffected. There were times i would tell him to stop talking to me or visiting my cabin as i am very image conscious.
but now it seems i've gotten used to having him around as it makes me feel very nice and secure. he recently mentioned about problems in his marriage and this got me all worried. i can't deny that i've started to care for him.
he makes it a point to visit me atleast once daily and we end up having long talks about our respective lives. well i am aware that i'm getting used to him and want to stop it here in a sweet manner. he has also helped me in many ways so i don't want to lose a friend like him. what should i do?