Gaz has finally decided to 显示 Zim how much she really cares about him, even though she hated 展示 it she thought that maybe it woudn't hurt to 显示 kindness once in a while. so first thing she does to prove her 爱情 is 吻乐队(Kiss) her Irken lover.
I didn't find the 杯形饼, 蛋糕 the heartwarming part. I thought it was the part where Zim let's 吉尔 off the hook and doesn't get mad was a rare instant where it showed that, in his own way, Zim cares for Gir.