No one cares about Mockingbird and Hawkeye. They are not even together in the comics. Stop trying to make it happen and just admit in the comic world it is Hawkeye and a lot of female characters (let us face it the man gets around) and in the movie world Hawkeye/Black Widow is heavily implied. I like you but I hate how you keep pushing Mockingbird as if she is the only one he has cared for
Publishing it, but not really going to answer right now.