Very true. Based on personal experience I'm convinced that the female/female divorce rate is so much higher not because women have worse relationships with other women but because women have a tendency to rush into "serious" relationships that ultimately don't last. This would certainly lead to a different dynamic than you see on Grindr. The lesbian dating style is very much:

1. meet girl you like

2. almost immediately become exclusive

3. date "seriously" for several months, effectively skipping the early phase of the relationship where straight couples tend to play mind games or continue casually dating other people

4. break up

5. repeat

My gay male friends tend to casually sleep around a TON until eventually settling into a very serious long-term relationship, while straight couples are somewhere in the middle and have a much longer casual dating phase before making relationships official (at which point the relationship is more likely to last). When you take men out of the dating equation, the vast majority of women become serial daters who hop from one semi-serious semi-long-term relationship to another. It makes sense that a number of those couples would get married and then quickly get divorced before an equivalent straight or gay male couple would even get married in the first place.

It's actually quite interesting to observe these dynamics IRL; makes me feel a bit like a dating anthropologist.