Advice please

Okay girls n i guess guys i need some advice what do you think I should do. Okay long story short i been on and off with my currently on boyfriend since high school til now sophomore in college. I've been faithful to him no other sexual partners i gotten checked in high school n i was always clean but since I only have inter course with him I never thought I would get something new soo now he went to get checked n he has chlamydia and we made it official may 1 so idk how the std works but if your clean you shouldn't have anything in other words it doesn't come out of nowhere only sexually if the other person has it yu get it right? N also what would you guys do like go get checked I know dat im doing dat tomorrow but the relationship n trust wat would yu do or assume? Females help my mind is racing he just told me today!!