What kind of relationship do tu think was between pink, yellow, and blue diamond?

I thought there was a amor triángulo, triángulo de between them. rosado, rosa and blue diamond were together and yellow was jealous and shattered rosado, rosa so she can be with blue is why she was trying to get her to forget about pink. but after seeing " Jungle Moon" after the way rosado, rosa might have acted portrayed por Stevonnie, I think a maybe they could've had a mother-daughter relationship. what do tu think?