I've got my own thoughts about the Burning Shores, but I don't think Aloy falling for someone is out of character, because they've been slowly building up to that moment in HFW:
This extremely awkward conversation with Avad, who is trying to court her (a reminder that people are romantically interested in her)
Zo and Varl's relationship - I personally don't think her reaction was necessarily jealousy, just her being confronted with the possibility of falling for someone for the first time (after years of living as an outcast)
Finding out about Elizabeth's past relationship with Tilda, and that she wasn't as untouchable as she thought her to be
And finally, her conversation with Talanah at Barren Light about first love (or crush) - all but predicting BS
She simply found a home with people that she loves and trusts, and now feels safe enough to open her heart for the first time.
Got inspired by @boobaloof’s plushie art and decided to make a Hawk and Highland cow version. Like I’ve said before, I need a whole AU where it’s Horizon but they’re these animals. Anyway hope you like it and go support the artist that inspired me to do this piece. Also I decided to give plushie Mooloy some horns because she looks cute with them. Hawk Talanah was an idea that came from @finrays
If you clear the tunnel before meeting with Talanah, she gets injured in the fight against the Shellsnapper and has to rest in Camp Nowhere - only after Aloy insists she takes some time to heal up, of course (not sure Varl or Zo would be amused)