Is that how you saw it? I think the mom is decently wise, and she's not being cynical. She acknowledged that her daughter will fall in love one day, and she'll come to understand on her own what it means then. She didn't say love was bad per se. Sounds more like she decided not to define it for her at all, other than hinting that is "hurts". I can easily see other gyaru's mothers telling them in detail about their own bad relationships and why they shouldn't value it. That's not what happened here, she keeps it ambiguous and let's her girl explore for herself.
And she's right on the money too, she knew her daughter would be the possessive type.