Is that 3 days on both the legs combined or separately?

That is...

Doha - KSA - Dubai = 3 days
Dubai - KSA - Doha = 3 days
Total = 6 days

Kindly confirm the above.

Also whether my wife can come alone (via flight) from KSA to Doha if I am not travelling with her?(I plan to drive back to Doha & let her stay few more days in KSA with relatives)

And how can my wife extend her stay for more than 3 days on the "Dubai - KSA - Doha" leg?

Really appreciate your response to above.

Thanks