On top of the huge age gap, I learned from OP's previous posts that this is a same-sex relationship, which also goes against the country's cultural norms.
OP, in your previous posts you mentioned that chat logs are basically all the evidence you have. This will not be enough in your circumstances. You will need a lot more, stronger evidence to obtain a K-1 visa, and I don't think you will be able to collect that additional evidence.