sen‧ti‧ment‧al‧ize (
also sentimentalise British English) /ˌsentəˈmentl-aɪz, ˌsentɪˈmentl-aɪz/
verb [intransitive and transitive] to speak, write, or think about only the good or happy things about something, not the bad things:
novels that sentimentalize the past [TahlilGaran] Dictionary of Contemporary English ▲