heartbound
/ˈhɑːtˌbaʊnd/adjective
1Having the heart entirely devoted (to a person or thing); emotionally in thrall to. Now archaic and poetic.
2Originally: pitiless, hard-hearted. Later more generally: having the heart closed off from sympathy, uncaring. Now rare.
Origin
Late 16th century; earliest use found in Philip Sidney (1554–1586), author and courtier. From heart + bound.