You broke the trust in one night. They get to rebuild it at their own speed, not yours.

Damage happens at one speed and repair at another, and the gap between them feels unfair mainly from the side that caused it. Wanting it settled quickly is usually about your own discomfort rather than their healing. They are not being difficult by taking months. They are doing the only thing that can actually be done, at the speed it happens.

Say the apology once, properly, then let your behavior carry the rest. Stop asking where you stand, because asking puts the work back on them. Turn up the same way for a long time and let them decide when.