I (M15) recently met a girl (F16) online, I'm scared I am a rebound, I don't know what to do.

I (M15) recently met a girl (F16) online. She seems really nice, we're a bit flirty and stuff, nothing NSFW because her parents are very strict and religious. She lives in the Netherlands, I live in Denmark. Her parents are really strict because they are muslim.

To the main part where I need advice: She's reposted a ton of stuff on Instagram about another boy for example such stuff as:

• "no revenge, bc at one point, while everyone warned me abt u, all I did was tell them how strongly i felt you were different"

• "when our memories starts playing in my head so then i lowk start js to cry"

I originally met her on ROBLOX, then got her snap, then her instagram and her tiktok.

Since then she's had to "remove" (unadd) me on snapchat and then ROBLOX because she's scared her parents will find out, I am scared she's trying slowly rid of me or worse, that I am just a rebound for her.

I have no idea how long ago this boy was, but other than that she's really sweet and flirty, she calls me a "good boy" knowing I like being called that and she calls me her "prince". I also occasionally call her "princess", "bae", "boo", and "babe" and just "my [her name]"

I have no idea what to do, I am scared to ask her if I am just a rebound because I really like her, i love her personality and she's pretty too. We have face revealed, she knows which country I live in and I just feel I feel like I’m too deep into this to just leave but I am also scared if I ask her "am i a rebound?" she'll realise and leave me.

TL;DR: Me and Girl met on roblox, i get her snap, insta and tiktok, she distances herself because of "parents" I am scared im a rebound because shes reposting sad stuff about another boy

please give advice guys.