Don’t limit lighting to downlights. Depending on the location consider wall sconces or uplighting to create a softer ambiance and avoid potentially harsh downlighting that can cast ominous shadows.
It may seem impossible to add a pretty pendant light in many cases especially when working with a concrete condo ceiling. A dropped ceiling panel can provide a place to house lighting fixtures like pot lights or pendants or even a minimalist LED strip to brighten a passageway while creating a beautiful space-defining feature.
Candles also offer wonderful sparkle and set a distinctly relaxing romantic tone. Just make sure you keep them well away from any flammable objects such as towels and hair and never leave them unattended.