1) Bathos 2) Sensibility 1) Expression 2) Formulation 
Sentimentalism is used in different ways: ...
• (n.) The quality of being sentimental; the character or behavior of a sentimentalist; sentimentality.
Sen`ti·men'tal·ism noun [ Confer French sentimentalisme .] The quality of being sentimental; the character or behavior of a sentimentalist; sentimentality. 
Showing too great interest in intense feelings.
noun a predilection for sentimentality
An exaggerated and distorted expression of sentiment, revealing a lack of, or a superficiality of feeling. -- L.V.