欠爱
[qiàn ài]
'欠爱' could mean 'owing love' or 'inadequate in loving'. On the surface it refers to lacking sufficient experience of being loved or expressing it to other people, yet beneath there's probably guilt carried because this person thinks they failed in giving/receiving enough affection to/from the ones around them. It can convey both personal emotional debt and the yearning for fulfilling such deficiencies in affection.