Straight to advice
Anonymous 1: believe me on this rejection is a myth,there is nothing like a rejection, it's just a thought from your head . For example before you wrote the letter to indirectly enquire if he feels the same about you, you were not dating, and after you gave him the letter , you still were not dating. Nothing changed. It only get worst when you go about thinking you are not attractive enough or you made a wrong move .I advise you let it be and see him more as a friend.
Feedback : I understand your feelings and you are very correct to call men what you believe they are, at least am happy you are learning. Sometimes in pain we can say things unpleasant but the better part of it is that you learn from what made you cry. It's a societal and biblical programming that you must get married one day not minding the fact that you were betrayed before. So my advice is that, you see the past as the past and allow new blessings into your life. Life is just like a game of card, you keep flipping until you get a win but then you learn from the failures