How can I handle women who only use me for emotional support due to my niceness?

So this is something that I already came to answer on which is to block them. For the ones who know, you know. I never used to understand the videos of people talking about how they block people who view their stories without liking their post, but I do now.

However, this is something that happens a lot. I have noticed that it is a lot of women who do me like this so I wanted to ask. If there something as a man that I am doing that can stop this.

So here is what happens

Basically, I have women contact me for emotion support when life gets hard and then ghost me after a while. I first notice this in college where women would just contact me to vent about classes. Sometimes they would contact me about a guy that wouldn't leave them alone. I learn later that I was the emotional garbage can which some people do.

I was too nice back then so I allow it happen.

Nowadays, I wise up. However, I noticed that i still attract these types. I had a girl in my med school text me even call me a friend saying she is scared she won't match. She then ask me how my application was going.

I am Christian so there is a saying we say "the devil is a liar". Basically, she just wanted intel. I was vague but then she acted like she trying to support me. I decided to text her a week later just to check in with her.

She ghosted me quickly. All I ask was "how has it been since you submitted your application"

So I was right all along. This same woman is going to come up to me in the library acting like we are cool.

We ain't but my thing is from a woman's perspective is there something I am doing to get women to do that?

I have had at least 5 women this year text me like this