i think i’m starting to like my best friend’s crush

So let’s name my bsf tina and her crush steve. Tina and I have been really close and we went throught hell and back. We are very close but throught our friendship there has been a lot of complications. We had these school programs where anyone can participate and we both participated. I was in most of those programs and she would always get mad and she wouldn’t talk to me for some days because of that. Also, she would get mad and she would roll her eyes whenever I talked to some highschool seniors and sophomores during the projects. I had crush on this one guy ( A REALLY BIG crush) that was senior year and she would constantly prank call him, prank text him, add him into some groups and idk what else. She also made up some story to steve how egoistic i am while tina and i didnt talk. ( we didnt talk because i seriously got mad from all the stories she told people, how egoistic i am and how i think that everybody is good with me)

Tina and I talked about it and we agreed that we won’t do any type of stuff like that anymore. After few days my crush sent her a friend request on her private instagram profile and she immediately texted that to me and to whole friend group. They started texting, she fowarded us those messages etc. I was kind of sad because my crush did ignore me irl back in the days when we had those projects going on. She also immitated my crush on her stories and he would reply to them. I also didnt want to talk to Steve because i got scared from the rumors and i just stopped.

When school started, she someohow developed a crush on Steve (whenever she talks to somebody she knows she develops crush). I was like “ok”, i didnt really care that much after she told steve how i act etc. Suddenly there was a new project where Steve and I both are in, and she was already mad. I didnt plan to do anything with him because i was already scared of what will he say after tina told him those stories. He asked me first to do it, there was more people with us. I agreed, because i really wanted to do the project (after project we recieved the money)

Steve and I started talking more, we got a bit closed and i was glad that he didnt bring up any of those stories. We would talk and my friend would always come up with that one “He likes you, not me”. I knew that he didnt like me just because we had a project going on that we had to talk about it. She would get sad and mad. I was sad for her, but then back in my mind something is telling me its not my fault and that she also talked to my crush too many times and immitated him to get his attention. Still, i wanted to be supportive and i told her that Steve is not into me. So in my opinion, she already broke some kind of “girl code” ( she talked too much with other people’s crushes too i mean idk)

Steve and I planned that project, it was important to us and we really tried to give it all. Tina was out of town and I started seeing him in school without Tina. We talked more and we started being good friends. He also called me once on the phone so we could discuss about the project and we also talked about life topics etc. during call he said “woah, when will we go out so we can talk about all of this” , then i got all nervous because i know that i cant go out ( tina asked him out and he told her that she should invite me too, and then she insulted him) The day of the project was really chaotic and fun, we all went well and talked. We were happy because it was one of the most successful projects we ever had. At the end, he hugged us all tightly and asked me if i need a ride back home. i told him i dont because my friend’s parents were riding me back home. he nodded and he was very happy after all that happened. we texted after the project and talked about how good it was. Later that day, he asked me out. I immediately told that to Tina and told her she should come with us. if she doesnt come then ill tell him i cant go out. She was hurt and angry but at the end she came with us. We talked about project, she couldn’t listen and she would talk about her topics (totally ok i mean why not) And now im scared that im developing some kind of crush towards him💀💀💀

after all she did with my crush those prank calls, texting, yelling his name on school hallways and immitating him on instagram, should i still be good towards her and let her be mad at me because im good with her crush now?