Depression and addiction are hard to combat. I hope he seems out help from a therapist, or councilor. That age is rough enough, without a pandemic happening. Sending prayers

"Today, God wants you to know that there is no such thing as conditional love.
Love is either unconditional or it's no love. You might like someone conditional on their personality or behavior or circumstances. But love accepts no boundaries. So never say 'I love you because', for love has no cause, love comes from God."

This was my message today.
I hope it helps for you to look inwards, and determine if you love each other, by this definition.