她是我的怦然心动他是我的心不在焉
[tā shì wŏ de pēng rán xīn dòng tā shì wŏ de xīn bù zài yān]
This contrasts feelings of excitement towards someone (likely a female) and apathy from another (likely a male). The former makes one's heart flutter with admiration whereas the latter feels distracted without interest or passion.