This was a roundabout homework assignment for my own therapy. However the focus was on what do I need?

Honesty
Communication in a feeling heard, understood or it's sister attempted understanding
Companionship
Valued
Respected
Cherished
Love
Similar future goals
Transparency
Nourishing
Financial Compatibility-which is huge
A large portion-sobriety which leads to...
Connection
Open mindedness-tolerance
Broad worldview
If not the same faith, not dismissing of my own. Encouraging me to follow my own path in that regard. Enough to share moments related.
Encouragement
Supportive
Compassion
Empathy
Loyalty
Passion of all varieties
Lively which is related to sobriety

I do ask as I wonder why your T wants you to put the cart before the horse in deciding about whether to stay or leave?

For me leaving wasn't about the hope for a new partner. Leaving was after exhausting avenues of staying on top of becoming a safety concern as tensions and hostilities rose.