When a wife is taking a long time to find a job, but has the education and qualifications (masters).

Situation: -loveless marriage -brink of 10 years (next year) -TX -young child involved (kindergarten next year) -in MC -prenup in place

She wants to try to fix the marriage and buy a house . Housing interest rates crazy right now. Is it better for courts if the child is in a stable home with mom having primary custody, but can ask for 50/50 custody long term, before initiating separation?