Hey guys, looking for some advice on a particular situation here and one I'm sure must happen every now and then, so I'm wondering what the best course of action is in this situation from some of the more experienced guys here.

So context here is I have a non existent social life for the past 6 months since moving to a country where I don't speak the language and covid regulations has made it near impossible to meet new people.
So about a week or two ago I decided to give tinder a go. Given that my bio is in english its a lot harder to get matches or then turn those into good conversations despite being a good looking guy.

So I found this girl who was really attractive and who opened me and we really hit it off, she spoke fluent english and our convos were really fluid with lots of flirting and generally just vibing, she explicitly said she had wanted to make out with me, we both soft closed several times and talked for a few days. When it came to logistics of setting up the date she was down but expressed she was really busy atm due to uni finals, which is fine, she said she will be able to and would love to in a week or two and that its a plan. Asked her shoot me her number and she gave her instagram saying I should hit her up on there.

So here's the thing, I then I see 2 of her stories on IG with her with another girl on the beach and the caption was "Taken 💜🌞" (She did mention before that she was bisexual). The song was one about 2 girls in a relationship so I assume that's what they just became, this other girl is a friend of hers for years by the looks of it from her posts.

I understand these things happen and it is out of my control and not expecting much is the best way to go about it, but in my situation I am far more invested than I otherwise would be because she is basically the only one i'm talking to due to my circumstances.

So it happened really fast given she was really into me talking to me saying it was a plan and 3 days later we're texting less and I see this story, now we did have a plan for a date which she would be available for starting next week, is it worth still opening her in that time? The perception she has of me is someone who wouldn't give a fuck and who has tons of other options and that is how I've been in the past so its not hard to act that way through text or irl but atm its not the case.

So I guess the situation which I'm guessing happens sometimes is that things were going pretty flawlessly, couldn't ask for better, but she appears to have entered into a relationship just now. So in this scenario is it worth still pursuing? Do I still open her for when we had planned the romantic date? And I guess IF so then how would I go about doing so in a non needy way?

Would love some advice from anyone somewhat experienced!