If you've caught his eye, you must be one in a million. He may like your long, dark hair and how tiny you are to him, and you probably wear glasses. You even have or want to dye your hair red. He likes those quirks about you. He likes the way you talk, the way you become so animated when you speak. Maybe you even have that "save me" vibe about you that really makes him feel like he should be there for you.
Deep down, he really wants to fix things, or people, and he really cares. He cares to the point where you might keep making the same mistakes, like sleep with another man, but he will forgive you and still love you the way he loves you. Keep in mind, he is extremely sensitive, and a lot of times you guys will talk about anything deep and intrinsic. Please, do not ever kill that vibe; do not turn him off by saying things you do not mean. Also, do not lie to him. If there is anything he hates most in this world, it is lies. Do not sugarcoat your words; tell him exactly how you feel and why something he did bothers you. He will try his best to fix it. This man is ready to do anything for you, and for your relationship, so please do not give him a reason to stop trying.
If you care about his feelings, try to understand why he does what he does, and you probably already love his idiosyncrasies and quirks. A lot of times you will be completely clueless about his feelings for you, but if he told you he loves you, even once, don't, don't you dare hurt him, or break him after he has given all of himself to you.
Yet, once you completely and seriously know you love him you will want to do anything for him. He is extremely forgiving and his kindness is heartbreaking once you have hurt him. He is moving on. He will probably fall for another girl like you (like me), but do not try to manipulate him to take you back. He is doing you a favor to find someone who can truly make you happy. Accept it and move on.
But the worst part is you will never forget him. He has taken a part of your soul.