Is this a good idea? Should send an email to him?

Ok before I ask the question this is the back story and let me know if its a good idea .

I liked this guy for 13 yrs. He always knew and when I asked if I had a chance with him. His answers was always maybe in the future, I don't want to hurt you. Its complicated. One time he said something that he saw me as a family member so I told him it was not fare for me to be in this friendship if he was seeing me like that and no progress was made. His response was am kidding I do like you. He has addimited to me he does like me but. 2 weeks ago saw him face to face. I told him how I felt and he said he saw me as a sister. It pissed me off because I can't wrap around my head why lie if he felt that way. why not tell me from the begging and I would ben ok with it. People say he was protecteive I say bs because I had an ex bf that did the same he knew the details why make me cause the same pain?? If he told me he was not worth it what he aint worth it either cuz he did the same? He was super cute with me he gave me presents that made know he was listening to our conversations he once bought me my favorit cookies that are not sold in the USA.

Its been almost 2 weeks and I haven't talked to him. I told him I did not want to continue the friendship because it hurt to much and I needed to move on. He continued to talk to me and I was mad how he acted like nothing happened and kinda said some harsh words.

I was not able to say a lot of things face to face because I just could not say them. I don't want all this bottled up and be what if game if I told him other things I was not able to.

Am also trying to lose weight not much but I feel like this stress of this won't let me successful on my goal.

Will it be ok for me to write everythiing down in an email and just send it to him and be over with it??