Should I try a secret relationship with my childhood friend?

Woke up feeling so sad because I have no idea I am in tear šŸ„ŗā˜¹ļø I am feeling guilty for rejected him a long time ago because I know he did in the past and now he decided to let me reflect his feeing exactly what I’m going through right now. I finally understood why he chased me all these years hoping I’ll say yes but I denied him so I thought about how he truly felt at that time all he wanted to find someone he can have fun with and who know what more we can have. He is an amazing good friend who is always there to make sure I’m okay and is now a very busy man and I know he disinterested in me now. I truly believe he is in love with me secretly and I’m the same way like I told him to his face then he knew how much I love and care about him a great deal that’s why he kept being my friend for now on because he admitted to me that he definitely care about me as a friend and don’t have a feeling for me but said he is complicate man and is easily confused so I already knew that because he is Pisces and I’m myself Sagittarius lol that bond is unbreakable ! I’ll forever love and care about him since he became the love of my life. Help me out y’all what should I do?
Should I try a secret relationship with my childhood friend?
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