Does your body get used to not having sex?

This is not a current matter since I broke up with this person last week but I am curious to know if anyone else has experienced this.

So I met this guy January of last year (2016) and since the very beginning our sex life was difficult and at different stages. He basically had a lower sex drive than i did due to multiple reasons. I would want to fuck everyday and he would have trouble even getting hard at times. As time progressed he got better and more comfortable and began initiating sex. The problem then began with me having trouble getting wet. Occasionally i wouldn't even want sex anymore. It felt like my sex drive had decreased from the time i got with him. Btw this issue wasn't caused from me not loving him any less or another man, i just simply just wasn't as horny as i was when we first began dating.

Has anyone else ever experienced this?

Id love to know