Thibaut Courtois will reopen contract discussions with Chelsea this month.
The 25-year-old goalkeeper, whose current Stamford Bridge deal ends next summer, has reportedly emerged as a target for European giants Real Madrid.
And Courtois admits the lure of a return to the Spanish capital - where he spent three years with Real's city rivals Atletico - would be tough to resist as his children still live there.
Speaking to Belgian publication Sport/Foot Magazine, Courtois said: "We (Chelsea) agreed to meet again in February because the club had more urgent issues to deal with in January.
Thibaut Courtois: Summer transfer window specials (via Sky Bet)
To sign for before September 3, 2018
Real Madrid - 6/4
Atletico Madrid - 6/1
Barcelona - 20/1
Valencia - 25/1
Arsenal - 28/1
Odds correct as of 1140 GMT 07/02/18.
"I am under contract until 2019. Normally, there is no problem, I will (extend). I am happy here and I see a direction that still wants to win a lot of titles.
"My personal situation is related to the city of Madrid. My two children live there with their mum. I have my daughter every day on FaceTime.
"Whenever I have the opportunity, I try to make a return trip to Spain. As a situation, it is not always easy. Yes, my heart is in Madrid.
"I do not know (if there is interest from Real). If they want me, they have to contact Chelsea. We'll see. But they never did it.
"What is certain is that I will one day return to Madrid. I love Spain, I loved the city, I spent three wonderful years there.
"If Real is really interested, my personal situation could affect (it), yes. The family aspect, it is priceless.
"But I repeat to you that, for the moment, I'm busy talking to Chelsea to extend."
Last updated at 1145 GMT 07/02/2018
