sentimental
US /ˌsen.t̬əˈmen.t̬əl/
UK /ˌsen.t̬əˈmen.t̬əl/

1.
2.
excessively prone to feelings of tenderness, sadness, or nostalgia.
:
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He's too sentimental to throw away any of his old letters.
•
The movie was a bit too sentimental for my taste.