<human>: Sorry if I'm submitting anything incorrectly, but I would appreciate input! 

I've become close friends with a former coworker, and have developed feelings for him after over a year of friendship. Since he left for a new job, we've gone out for drinks/met up for dinner pretty consistently. Nothing physical has ever happened between us, but there is a lot of chemistry and flirting. We see each other at least once a week, and are texting almost every day. We've both disclosed a lot of personal information to each other (family issues, dating history, personal problems, etc.) and have become very close especially in the last month or so.

Recently he has told me about his ex-girlfriend that he's struggled to get over, and the other night he told me that he met up with her because she's in town for Christmas. He thinks they might hook up while she's in town, and he's wondering if they should consider getting back together. For context, they dated for over two years, and he broke up with her.

I've been trying to decide whether or not I should tell him how I feel, but I don't want to ruin our friendship. I also can't take listening to him talk about possibly having sex with his ex, and asking me what I think he should do. All of our mutual friends want us to date, and are always asking me about him, but we're both pretty shy about sharing "emotions" so it's not something we've ever really discussed.

Is it even worth it to try and have this conversation with him? Should I get some distance? Should I just leave the country and never return? I feel like this is such a common thing that people experience, but I need some outsider perspective. Have any straight guys experienced this with their female friends?

Give me a shortened version of the text
<bot>: I've fallen for my close friend and am scared to tell him/ruin our friendship, but am being tortured hearing about his ex. What should I do?