Let's predict the future!
Some noble ladies are gonna be jealous of our FMC. They'll definitely bully her and stuff. Outcomes are; 1) She keeps it a secret but Prince finds and saves her, 2) She uses the Prince to intimidate them, or 3) She becomes a true noble and slams their asses.
Princes from other kingdoms grow interested in her. They tease and flirt at her, which she does get uncomfortable but not too much. The Prince however gets super jealous and everything. Outcomes are 1) The other kingdoms were just having fun, so nothing serious happens, 2) The Prince sulks too much and FMC has to step up, or 3) They say they're just having fun but the arc ends with one of them successfully making her blush.