So these three,,,

Starlight Glimmer:
Bisexual. Cis, she/her. Her preference leaning towards g i r l s.
Single mother of one. She adopted Cozy Glow (I changed a lot about Cozy cuz what happened???)
Starlight pretty much cleaned up her shit and actually trying to better herself after some 'incidents'. She haven't been using magic as quick solutions.

Moondancer:
Lesbian. Cis, she/her.
Married to Trixie and mother of one. She loves her small magician wife and find her amusing.
Uhh she pretty much her wife's manager/'lovely assistant' and help Trixie with her shows. The two still travel here and there with their kid.
Moondancer kinda secretly likes it when Trixie annoys Twilight. Only a little.

Trixie Lulamoon:
Lesbian. Cis, she/her.
Married to Moondancer and mother of one. Trixie is definitely a clingy mare, see her be somehow on her wife's back.
She tone down her egotistical ways a little. Only a little since she is ✨amazing✨. Doesn't help that Moondancer fuel her ego more.
Trixie is a mule in my headcanon. She also doesn't really have strong unicorn magic. Her illusions and magic tricks are good enough for her.

Now just some few small things about these three:
Starlight and Trixie had dated before. The relationship wasn't very great. Sure Trixie isn't perfect and have her faults, but she tried her best to apologize. Starlight, tho, isn't very forgiving by her condescending words and thinking the best of the two. Starlight knows better so why wouldn't Trixie listened to her? Ugh yeah the relationship ended badly when Trixie state she gonna travel again and doing shows. With or without Starlight, she's going away anyway. That caused an arguement between the two, Trixie finally breaking up with her. The two are still not in speaking terms.
After that said breakup, Trixie is very miserable in the months of preparing to leave ponyville. She definitely don't feel 'great and powerful', just 'sad and pathetic'. So once seeing Twilight throwing an event at her castle, she snuck in cuz she's tired of being mopey and wanna have some fun. Mostly drinking. So drunk little Trixie found a lone Moondancer in one of the rooms. Attracted to the stocky mare, she decided to shoot her shot. By that I mean her going "Hey you wanna see a magic trick~". That how Moondancer and Trixie met. Really Trixie doesn't really remember the night. Pretty much passed out against Moondancer. But it worked! The two ended up hanging out more. Well more like Trixie kinda just 'bugging' her and Moondancer just find her entertaining at least.
Cuz of the two hanging out more, Moondancer took an interest in Trixie's job and help her with it. Pitch in whatever might work or not. Listening to what the smaller mare say in her tricks. She was a little overwhelmed when Trixie asked her to travel with her. Moondancer doesn't really have much to think on really cuz tbh she doesn't really have anything going on at home. Quick discussion with friends and her sister, they decided it would be good if she goes with Trixie. Moondancer is pretty excited to travel and with a pretty companion? Can't say no to that!