Ah forgiveness. So fickle and annoying.
It’s complex and wirey. It attaches itself to layers of circumstances each one requiring you to work through it.
An apology is secondary to forgiveness. True heartfelt, admittance of guilt, behavior changing apologies are rare. They will still require you to work through the offending action(s) and the offender to forgive themselves. So, any real, half-assed, blanket apology or lack thereof is just fluff. Your only task is to work through it and let go. Forgiveness is an act done for yourself.
A grudge is exhausting to hang onto and is good for nothing but drunk angry rants at your pity party. Forgiveness is the ultimate act of self-care. Do what you must to achieve it. Give yourself space to work and distance if possible. Some wounds need more time than others. Recognize your efforts and treat yourself with kindness and compassion. The act of forgiveness is hero’s work. And your reward is joy.