Hi thanks for asking questions.
I can understand his concern.
After breakup he might be in
stress.
He might have these symptoms because of taking stress, probably.Try to avoid stress.
Advise him for doing regular exercise.
Yoga and medication early in the morning useful.
Talk with him daily and encourage him and help him in office works.
Endulge him in some activity in evening like playing sport, dancing etc.
If still difficult urine with burning then I will advise to go for urine routine microscopic examination and USG .If infective cause likely antibiotic needed.
Avoid straining at urination.
Go for urination when required.Because of some work urination not to be postponed.
Drink more water.
I hope my suggestion will helpful to you.