Should I still let her be the gender keeper after this?

So I’ll just start by saying I PERSONALLY do not believe in abortions, I would personally never get one. Both of my sisters however support it and both have said they would get one if they wanted too which is their choice so who am I to judge. That’s a topic we have all agreed to disagree on but I am currently pregnant with my 3rd baby. One of my sisters seemed super happy for me so I asked if she wanted to be the gender keeper for me since I didn’t get to have gender reveals with my last 2 babies I would like to this time. She said yeah and was all on board and like I said has seemed super happy for me but today I heard from my other sister that she was talking crap about me to her and about me being pregnant saying things like I “seem like I barely handle the 2 I have because my kids are brats” and that if I “think it’s hard now what am I gonna do with a 3rd one” and that I’m just gonna “have to go get an abortion.” Like I cannot believe she would say something like that after she’s acted so happy for me. Would anyone else have their feelings hurt by that ?? I honestly don’t want her to be the gender keeper anymore and to be honest I don’t know if I even want her being involved in the pregnancy anymore. She’s went to ultrasounds with me and everything for the last 2 months but then went and told my sister pretty much that I should abort the baby. Like her saying that really rubs me the wrong way and hurts my feelings. She knows how I feel about that and that I would never do something like that I just don’t know why she would be so too faced.