my friend bullies me

i am currently a 3rd year college student and 1st time namin mag f2f classes, may nakaclose kaagad ako na classmate and ever since then, always na kaming magkasama. But these past few weeks, she keeps on bullying me, or pointing out my insecurities, she'll say things like "ang taba/itim mo siz", or "ang bobo mo naman", and she'll say it especially when we are in public. Pero when we are alone naman, she never does it, she's a good friend naman and she always help me a lot, yung pagiging bully niya lang talaga ang ayoko sa kanya. I feel really hurt whenever she says those things to me, pero tumatawa nalang ako kasi I don't know how to deal with it. I am not really the type of person na confrontational kaya I don't know what to do. Kaya I am here asking for an advice on what I should do, cause I really can't take it anymore. Hoping someone could give an advice :<