She has always remembered. Always. Ran's first leaving her to Yuyuko and Youmu, and then her throwing her to Yuyuko have pretty much been her entire motivation. Well, that and the fact that she didn't want to get chomped a second time by Yuyu-chan. Then Youmu fanned the flames per Ran's orders so that they could kite her...which didn't work out so well.
There's no way you'll abandon Chen...Of course.Heheh... Well, isn't this expected?Ran.Compared to you, Chen is
overwhelming!I'll do anything to protect Chen.Heheh... Rather than abandoning me, you even used me as bait...
...Ran.Since she's weak.I'll protect her like THIS!