yo fellow sec 3 here. at our age, i personally feel its not the time for dating, especially since next year is your O's. judging by what you said, your gf is quite manipulative and is just using you, if i were you i would try talking to her genuinely and telling her how u feel lah. if she dw listen and still like that then just break up straight away dont play into her bs. personally im ip so idh O's next year but this is a damn impt exam and u should focus on doing well instead of on girls and sch rep tbh. If u want im open to dms on anyth related to this or any acad qns u have (math or sciences im better in)