Generally speaking (I'm not making this about your particular experience), if her last rites were performed according to Sikh maryada, then she wouldn't "be" with anyone, much less in a specific country with another person. That's what happens to so-called ghosts or spirits who haven't been able to pass over; they cling to people they loved or with whom they had an affinity when alive.
Sikhi states, from the various things I've read over the years, that the worst thing that can possibly happen for the deceased is for their essence to remain tied to a living person or people. This would suggest the final paats, ardaasa, etc., conducted in the name of the deceased didn't work or fulfil their intended purpose. Then you have to ask yourself, "why?"