How do you confess your feelings to someone you liked a year ago?

How do you confess your feelings to someone you liked a year ago?
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+1 y
I worked under him, he was my supervisor.
I think he liked me for the 2 entire years we worked together. He was always quiet around me alone. But Because I didn’t have any prior experience with relationships and my self-esteem was on the floor, I never let him know I liked him or gave him any signs. He gave me all the signs there can be. He even gifted me random things during the holidays. BOTH years. I felt so stupid never have given him at-least a chance for a date or something anything at all
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+1 y
When he left this was early 2021. He looked at me for a while, I ignored him, then I looked back at him and he said bye. And that was that.  We’ve been through so much together, and I couldn’t pull the guts to say or showcase how I felt I regretted this for the rest of these years. He was never to be seen or heard of, again.
How do you confess your feelings to someone you liked a year ago?
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