Your chart doesn’t show any problem w.r.t co-borns. You do have Kemdruma dosha with Moon unassisted on either side but since there are planets in its kendra, there is also a cancellation of the dosha.
Your 3rd lord, 11th lord are both well places and well aspected. Even in the Drekkana chart there seems to be no issue. Mars does aspect the Drekkana Lagna but he is also the karaka for co-born. The 3rd and 11th lords are well placed together in the 11th house.
It is possible that the relationship between them is good while with you it is just a shade less. Other than this, I do not see any problem.
By the way, your Jupiter is a Dagdha rasi lord. Jalabhisheka to Lord Shiva on Mondays with proper sankalpa is suggested.