girls im in need of advice....

SO I HAVE BEEN TALKING TO THIS GUY FOR ABOUT TWO WEEKS.. ive given him head twice, i don’t want to have sex w him but i also feel like im kind of obligated too. I lost my virginity last year in august, and the guy left me right after. i don’t want to go thru all that again but at the same time i do crave it, im so confused. What if he only wants sex, what if im being too easy, what if im just over thinking it......