She keeps thinking of pretty words and phrases that suit the situation perfectly, but gets a little embarrassed and pushes them under the rug with sheepish little grins.  She’d say the ways that you make her sigh, but putting them to text would stifle them completely and leave her feeling quite remiss.  So she carries on with her brave, slightly-amused face, doing the things that she must to hide the constant thrumming of that heart of hers.