Soo this girl is 17, I‘m 19 and we are soon to be in a relationship or basically are already. The thing is she knows that I am jealous, „triggered“ when I see her being close wirh other guys(normal??)

So she keep teasing me with it(shit test?). As in she snaps me pic of her in school while leaning on her guy friend and holding his hand.(ye right lol but there is a possibility of him being gay but not sure if that would change much), or random remarks like this dude looks nice or I should register on this dating app,etc

Now I am unsure how to react. Obviously every time it happens i get annoyed and sje probably senses that but apart from ignoring what else can I do? Ignoring could also be interpreted as „weakness“ or? I could comfront he with it and say her to stop but she probably already knows that and that would just confirm her my annoyens