romantic feelings on puberty blockers

I'm a trans guy and I'm gonna start puberty/estrogen blockers in a few weeks (injections in case that matters). My doctors told me that it's possible to lose romantic attraction when you start because your hormone levels are gonna be the same as a kid's. The thing is, I'm in a very happy relationship right now so I obviously don't want to lose feelings for my boyfriend. On the other hand, my dysphoria is pretty bad and I need hormone blockers in order to start testosterone. Do y'all know if that's true? Advice or personal experience would be appreciated, thanks!