Who would make a good future wife for Raj Rasoya?

I matched him up with a NPC named Olivia Witt. They are living together in a house I built on Dusty Turf in Oasis Springs. Olivia was the only single lady available at a romance festival. I moved mama in with them. She now has a love interest with another NPC named Ayaan Salvalani. So their apartment is vacant. So far they have been behaving themselves. I guess they didn't like living in an apartment in the city.