I think there's a lot of factors that can play out in this situation. Also, more content about the relationship status between you and this person would help give more insight.

Here's a few things to consider:

How much of this person's hurt is my responsibility to fix?
What is my intention in earning their trust/relationship?
What actions can I show the person that demonstrate my intentions and integrity?
What does this person value? What do I value? (take a moment to compare the two)
We can't control others only our actions. I hope this helps!

A question to ask is what attracts people to not only come but stay in a work place? What embodies respect and appreciation for an employee?
-Pay- At the end of the day people need to pay their bills. Feeling short handed in this area is a big motivator for others to move forward with other opportunities.
-Growth opportunities and education: If they settle for other aspects of the job, what are the other investments they may get in the future for their time and commitment.
-Leadership- 70% of employee engagement is related to how engage your leadership is with the team. Too many managers not enough leaders.

You can have all the training in the world but if innovated planning lacks in how these 3 are treated culture will continue suffering.

Focus on what you have done! Everybody has the right to take time for themselves it can be simply put as time that was devoted or spent on personal development! I believe in being honest but you don't have to go into a deep explanation either.

Hi! Ask yourself this, what is most important now and how would that look like in a year? Describe it to yourself and you may find an answer in that. It's never too late to do anything especially something that gives you benefits you deserve and what, however always measure it to what you most value and you'll know what to do!