Sister of a guy that proposed to me is being too friendly after i rejected him ( 22F, 24M )

a little background: i am from turkey (F 22) , and a guy from Saudi Arabia (M 24) proposed to me.

His family contacted mine asking for my hand in marriage, but my parents declined due to many differences between us and that i am still young.

the family had already booked their flight ticket to Turkey to see me and hope this arranged marriage is successful, fully knowing that we declined already.

due to my parents feeling embarrassed that they came all that way, they decided to invite them out for dinner as a friendly invite.

while we were at the restaurant, i’ve clicked so well with his sister and became friends and mutuals on instagram.

i didnt think much about it, till she immediately added me to her close friends, and texted me.

she asked the usual, how i was and what i was up to and just talked for a bit.

prior to everything, they already knew that in a couple of months we were gonna visit saudi arabia

she kept on posting on her close friends random pics while tagging her brother.

while we went to saudi arabia, she texted me again and she knew that i was there, and she started sending me reels of places to visit.

i felt like i needed to be more friendly and converse more, i asked if she went to one of these places and she said not yet and asked if i would like to go there with her

i agreed and said we can choose a date to meet up and go. i asked my mom if that was okay, and she said yeah why not you guys are friends.

we do end up meeting up and she brings me a gift and keeps telling me that she wanted to pay for everything we were gonna do and eat.

and i have noticed while we were out she was taking pics of me, and later asked for us to take a selfie, and then posted some on her close friends.

now, am i overthinking this whole thing? is this family still trying to make this marriage work? or this girl is just nice and wanted to be friends?

TL;DR

A 22F from Turkey was proposed to by a 24M from Saudi Arabia. Her parents declined due to differences and her age, but his family still flew to Turkey. Out of politeness, her family invited them to dinner, where she bonded with his sister. They became Instagram mutuals, and the sister added her to close friends, frequently tagging her brother in stories. When she later visited Saudi Arabia, the sister messaged her, sent reels, and suggested they hang out. They met, the sister brought her a gift, paid for everything, took photos, and posted them. Now she’s wondering: is the sister just being friendly, or is the family still trying to push for the marriage?