Responses
I think for mame to get over her first love and years of despair she needs to date for some time. It's just like u desire something impossible to attain the most. It's necessary for her to get in any new relationship otherwise it will end the same as her previous relationships and the cycle will continue. So for her happy ending with someone better she needs to get him out of her system completely.

Am I the only one who doesn't want Mame to end up with Sou-chan??
I fel like he's just decided to date her cause she's close and available. She should find someone who really treasures her and leave that one-sided love finally aside.