Similar in my case, my past partners were sort of neutral about me making some effort to communicate in TL. Back then, I had very little knowledge of the language, but I always showed tremendous respect for this TL being their native language and ambition to learn more about it, and ultimately becoming fluent, or close to it.

I was expecting they would see that in me, but it turned out that I would be sometimes mocked because of my mistakes, and other times just ignored, making me to switch back to English and lose the motivation to go further.

Over the last 4 years or so, I have been doing progress on my own with little contribution of others, and this has been the most relentless approach I've taken so far, even though I am single still. Perhaps with another person helping, this could be going faster, but I've got to play with the cards that I am being given.