I'M CONFUSED

I had 3 straight relationships with men but eventually broke up cuz of certain issues. Then I transferred to a new girls school( previous I was in a girls school too.thats normal here) and I found a friend named A and she had a friend called B. Even tho I first met A, Me and B are best friends now. A is also in our friend circle and there's another one. A group of 4 girls. B revealed she has a relationship with a girl and as a person who respect to lgbtq community it was really nothing to me. But our country is against it.

I never had feelings for girls before too and B was the 1st person I met in real life as a lesbian girl. Her relationship isn't smooth with her girl and that girl barely responds her. But they are not fping for s break up and B has alot of faith on her. So she trust everything that girl says. Even tho she responds after days or weeks. So I don't involve with that and only listen what she has to say. She's texting me from morning to midnight and we became best friends really soon. We think alike , act alike, 99% of both of us are same and we are really comfortable for each other.

But for nearly 9 months there's a special feeling toward her which I can't describe. I always check on her, worry about her, try my best to make her laugh, share everything with her. At first I thought that's friendship because I never had a best friend before. But eventually I started to feeling jealous of her girlfriend but I never talked about it. When B talks about it I reply very well without letting her know my jealousy. B and her gf have never met fr they just text. But B belive her alot. Their relationship is is 9 months old. When B receives texts from her gf she feels really happy. So that don't wanna ruin her happiness. But I'm confused with my feelings too. Is thus just a friendship or do I love her? I don't know

I need a help to clarify. Cuz there's none I can talk about this. Only person I have to talk is B, A and other girl of our 4 members group but as we are friends I don't wanna affect that. I'm sure A and other will think I'm crazy if I say that because we already know that B loves another girl. What should I do?😭