Very worried

Hello guys I'm new here my name is Dominique I'm 27I was recently diagnosed with high-risk HPv Non 16 18/45 with no cell changes i've been with my boyfriend for 3 years and I'm confused.... how did this happen my question is ... once cleared will it ever come back ? I was told once cleared I'm not likely to get it again .. I got the vaccines and I'm always careful so I'm shocked and my boyfriend is 7 years older then me so is it a possibility I got of from him and last I know this may sound crazy but I know when the immune system is low hpv tends to not go away does that goes for colds and flus ? Will it come back because of that ?