I need some advice

So I started dating this guy and we really like each other and so we tried having sex, but he would not get hard it was so frustrating and confusing for the both of us to understand why. Of course I am think thinking to myself is it me?

Anyway next day we try again, but still nothing IDK what to do he think giving him a blow job might work but I really don't like those because I have a very bad gag reflex (it's wired)

but idk what else to do I need some advice....