The word "love" is far too vague

Love is a word with far too vague a signified. It refers to a whole lot of different things. If we spoke ancient Greek and used all those various words that the Greeks had (eros, phillia, agape...) and realised that they apply to different things, then we would be more realistic.
Sorta-Freudian or self-analytical that I am, it seems to me that if the guys realised that they are only going to get motherly love from their mothers, and realise that eros and motherly-love don't mix much, then they would not expect so much from other women, and behave differently, and finally fall apart, gracefully one hopes.