Cloying
/ˈklɔɪ.ɪŋ/
verb
To fill up or choke up; to stop up.
To clog, to glut, or satisfy, as the appetite; to satiate.
To fill to loathing; to surfeit.
Synonyms: block, block up, choke, fill, fill up, stop up, stuff, stuff up
adjective
Unpleasantly excessive.
“The cloying fondness she displayed was what, in the end, drove me away.”
Excessively sweet.
Synonyms: oversweet, saccharine, syrupy, treacly, exaggerated