Desperate 😭

So me and my girlfriend of almost 3 years just had our 2nd “Break” in the relationship. I’m not really a sexual person so we haven’t had sex in the last 3 months and she thinks I’m not attracted to her . My question is how can we bring that spark back? I really love her with everything in me and I want this to work. This is my first time being in a stud/fem relationship No negative judgements please