<human>: My [37M] wife [37F] (married since 13 years, together since 15) asked me to leave the house 2 month ago - reason: she tells me she lost all feelings towards me after our son's birth 10 years ago. Both kids daughter 6 and son 10 stayed with her. We had some contact since but the last two weeks we barely sent any messages to each other, yet I have been talking to both my kids on phone regularly.

Tomorrow I am flying to them for 4 days.  As the contact to my wife has become less in the past weeks I think that that is a sign for loosing our relationship. She has not started any chat, always only replies to my messages. Has not called only responded to my calls. 

I am not sure how to behave when we will meet. Do I hug her or just say hello? Do I show my feelings that I am sad and want our family back together or do I play the "life is good" part? Should I bring her a gift? (Since I left I sent two boxes with presents to them, my wife said thank you but without any comments or sign of joy). Sent her flowers on our 13th wedding anniversary, got only a thank you message in whatsapp. Should I try to talk to her about our relationship or should I leave this topic out as she always tells me not to pressure her.

Give me the gist of the text in a nutshell
<bot>: wife asked to leave family 2 month ago, tomorrow will be first time I will meet wife and kids again - need advice how to behave towards my wife to make the best impression