Best friend or potential?

I have a situation and i need guys opinions and not just answers i want to hear. My best closest friend in the world is a straight guy. We have been friends for 3 years. When we met we were both married. The first year of friendship he went through a divorce after discovering infidelity. My marriage was very strained and getting worse. He has been single for 2 years. I was his support through the divorce. Now i have found out my husband was cheating and we are splitting up. He met someone last year and went on a few dates. I realised at this point i had feelings for him. I wasn't able to give him advise and admitted that i had feelings but that i had no expectations ir even hope as i was married and lonely and i know im not his usual type. He ended things with this woman before anything really happened and said he did it because he couldnt look at her without thinking about me. And he felt guilty. Our friendship is still what it was and thats the most important thing to me. He calls our friendship a relationship that is the most special thing to him. Everyone around us has said they can tell there's something between us. he's the most brutally honest person i know and he hasn't ever said anything to me about not feeling anything for me. He has told me he wouldn't get over losing me though. Do i need to smell the roses and move on to dating others. I know he lives me but i usually assume that guys aren't interested to protect myself from rejection. No matter what my instinct tells me. I need guys to please translate the behaviour for me. Do i trust my instinct or is it possible its my imagination.

Best friend or potential?
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