[Grammar] whom I've been living with

[Will17]

Hello everyone,

I hope you had a lovely summer.

Can you tell me which sentence is correct here, please? :

-I'm married to Lisa, I've been living with for 15 years.

-I'm married to Lisa whom I've been living with for 15 years .

-I'm married to Lisa who I've been living with for 15 years.

Thanks a lot
WIll

 

[Rover_KE]

I'd write it like this:

'I'm married to Lisa, whom I've been living with for 15 years.'

 

[5jj]

I'd write:

Either: I'm married to Lisa, who I've been living with for 15 years.
Or: I'm married to Lisa, with whom I've been living for 15 years .