Ah so that ending... After the entire chapter here is either going to be really sweet or sad..
Sweet as in as the chapter went on Shou saw how people were fake friends or how they were treating Umi around here or how Shou basically tried to run from Umi because her friends made comments about her being clingy etc... HOPEFULLY She will stress how much Umi means to her and we finally get some smoochy smoochy Umi hasn't been as desperate for that lately so that's bound to come back around.
OR the sad depressing part of her wanting to tell Umi to leave her alone because she doesn't want her friends to shun her for hanging around her and she doesn't want to get hurt because she thinks Umi will leave her in the future... Boi if Shou hurts precious I will be so upset. Umi is like the sweetest character ever created and she really does seem to care for/love Shou.