Std and pregnant

Ok so I'm not some hoe or anything this will be my second child everything was good with my first pregnancy now this one I got checked for std and it came back positive yes its curable and I have not been with anyone else but my current partner but at the moment we are split up so after the first time my doctor told me I got the medicine and everything slipped up had sex with my partner same person but with protection go idk if the condom came off or what but I go to the hospital couple weeks later they tell me I still have the std and rewind back to the first timey doctor told me I told my partner he is refusing to get tested this guy was my everything Im not the type to cheat I feel he should've been honest with me idk how to feel I just hope its gone when I go back to my doctor appointment on the 17th because I have not been with my partner and refuse to now I know it sounds crazy I should've did that the first time my mom has been telling me to leave him alone but its hard I love him I want him to be in his child's life my first daughters father walked out on us I mean my current partner does want to be here but I'm not letting him I just feel betrayed