I wouldn't take relationships on MN anymore representative than relationships on social media.
Being bisexual and having dated both sexes, my experience dating women seems to have far more in common with what many are giving as their experience of dating terrible men. While I get prefering being single, the idea that women are easier to be in relationships with or that people should be glad to have the capacity to date women rather than men is not my experiene at all and I think doesn't help anyone, least of all those who've struggled with abusive relationships with people of either sex.
Every relationship with another woman I've had involved major control issues, manipulation, contempt and constant criticism (one I left after finally realizing every communication for 6 months involved criticism and attempts to control things down to who I was reading), full 180s in a moment that I was often walking on bewildered eggshells, constantly feeling like I must be doing something wrong, that I needed continue to prove myself, that there was always something else I should be doing that I'd have no idea about until conflict (and even then, not always). More than one involved serious lying, using me to try to get someone else and repeatedly putting me in intentionally 'testing' situations it seemed just to have something to yell at me or stonewall me about including disappearing for months and then coming back angry that I've moved on. I would far rather be alone than in another relationship with a woman and understand if that's all some have experienced in relationships with either sex that they might feel similar.
My relationships with men have been mixed, but never close to abusive. Similar with women, there is figuring out who just wants sex or status of being in a relationship or passing time and who actually wants a relationship and willing to put in the work, but I found far less guilt in walking away when there wasn't a match with men. I think there is some cultural socialisation there that we "should" be able to work it out and understand each other better by being the same sex that just isn't reality, all relationships require communication and we are far more individual that just our sex, and I was less able or willing to assume the worst in a way that seemed almost natural to be able to do with guys. I feel well trained to call a guy an ass and get him out of my life for crossing the line, but still a push to do the same with another woman, like I 'should' be nicer and more willing to put up with shit from someone of my sex.
As much as we can discuss the socialising of women towards marriage, since my childhood in the 80s and before, there has been cultural and social messages against marriage. I was raised to think marriage wasn't for me, that guys would only marry me for sex, and marriage and kids are only a burdensome source of misery by women who I only later twigged had married largely for money and/or pregnancy. I don't think culturally we have a good grasp on relationships - whether mixed sex or same sex, romantic or otherwise - especially not in how they are part of our lives with careers or other things that culturally are treated as 'worthier' uses of time and energy.