Should I hold out hope ?

Hi I am new …

I am going thru a very long divorce and had an affair with an old high school flame that lasted 9 months . We stopped seeing eachother in September and I was devastated . Throughout the entire relationship it was very convoluted … alot of issues with my being married and his not sure of his feelings etc . There were times I was very needy and came on too strong as a result . I know this bothered him and he made it pretty clear . We both did a lot of bad things hurting eachother etc . the last being a friend of mine sent him an e-mail because of something mean he said to me and she chewed him out . He then took himself off my facebook acct . and will not respond to anything I send via e-mail or texts or calls . I did not contact him for about 4 or 5 weeks and then a friend suggested I send a Halloween card to show I was not serious and therefore approachable , no response , then I sent a Thanksgiving card that was really funny and again , no response although it’s only been a day or two since I’m pretty sure he recieved it . He told me several times he thought about us being together long term but would also say there were things about me he really liked and some things he hated . He said he had a ” two year plan ” regarding where he wanted to be with a new business venture but once asked me to marry him in 5 years ( it was very casual and I just said ” Ok ” ) I did not write anything personal in either card , just signed my name .
He made several comments throughout our relationship about if the relationship not being a probability now maybe it would be in the future . I think he just got sick of the drama but I know he was crazy about me . There is alot I’m leaving out here but we had a chemistry like no other I have ever experienced and I know he felt it too . My friends say there is no way someone can feel that kind of thing alone . I’m afraid the e-mail from my friend was the last straw but he forgave me so many other things during our relationship as I did in return . If he will not speak to me how do I get him back ? I just feel deep in my soul we’re meant to be together and need some perspective as to whether to hold out hope or not . If I can somehow let him know my divorce is almost final do you think that would help and how to I go about letting him find out ? Thanks for any advice , Chezwee