Should we try learning something together?

Absolutely. Learning together is one of the best ways to keep intimacy alive.
One of my favourite practices is learning Tantra Massage. It teaches presence, communication, conscious touch and the art of slowing down.
Rope bondage is another beautiful way to explore trust, creativity and connection, even with just a few basic knots. You could also learn erotic communication: how to express desire, build anticipation through words, tell erotic stories, or simply become more comfortable speaking about what turns you on.
At the end of the day, the practice itself matters less than the attitude behind it. Stay curious, communicate openly, and remember that intimacy isn't about performance it's about discovering each other deeper and deeper.