Quote: So i decide to apply LTR, last thecnic resource... Not showing him too much afection, not talking about R, letting him alone and detaching a little. Do you think that in my h situation, it is the thecnic i need to apply?.
No - I think I would not do this. I think you should be happy, positive, cheerful - laugh and joke with him, be beautiful, smart, interesting. Seduce him in the middle of the night when he's sleeping if you have to!
He may not realize all the grumpy thingsa he is doing while he's depressed, and then he is going to wonder why you are treating him so coldly.
Did you ever read the Five Love Languages by Chapman? Are you speaking his love languages to him?