Last year, one of my closest friends stopped talking to me without any warning, leading me to believe that something bad happened to her. She deliberately did not answer my calls or texts for a a month and a half. I later found out she was mad at something so small where she twisted my words around. We mended our relationship (this was a year ago), but it did stick with me that it was very hurtful how she dealt with the conflict, instead of communicating to me that something upset her. The day she went silent was after going out to dinner with her when everything seemed great, so that shows how unpredictable she can be.

Well, I recently went out with her to a restaurant after not seeing her for a period of time. I brought a gift for her daughter and everything seemed fine. However, I suspect the silent treatment is happening again. Her last text to me was really distant after we met, and it's been weeks since she last contacted me. Usually, she contacts me every few days, so that is her usual pattern (she's more of a phone person than me, but I respond regularly).

Honestly, I put so much time and effort being there for her, and it hurts that the same silent treatment behavior is back. I'm still hurt from the first time.
I want to get over the pain and the feeling of not knowing exactly what went wrong. I want to heal and get rid of this negative energy. I admit that this friend constantly has problems with so many people in her life. Her relationships with family, friends, partners, and co-workers always seems tumultuous so I am now questioning all of this. This friendship no longer seems healthy, but I don't know if I should reach out. Maybe she is using the silent treatment as a form of control. I don't really know how to move forward. Anyone have any feedback or been in a similar situation? Should I just let it go, or contact her?