When the sex is good, both people actively sexually arouse themselves. You only get sexually aroused by what you feel and enjoy. That's why you should focus not only on your partner, but also on yourself.
Your sex life doesn't love just turning on a hamster wheel. Even if not everything that is new is super, it is worth keeping the tension by openness.
If you talk with each other during and about sex, you avoid frustration. Talking about sex is a matter of practice. We have some tips for you to make talking easier.
In a relationship, it's perfectly normal if you don't both feel the same level of desire for sex at the same time. You should avoid some clumsy strategies for such moments.