How do I know if my friend is lying to me about my ex boyfriend?

Okay,so im 13.I have an ex boyfriend named Vince,and a friend named Dominique,She told me that she texted him and asked him if he still had feelings for me,she said that he replied saying “No” and this is how she texted him: Dominique: “Hey should I tell vanessa that you dont like her anymore?”

Vince: “Why would you do that?shes your bestie?why would you wanna hurt her??! WTF,leave it alone”

Dominique: ‘’Okay,sheesh you dont have to be all yelling at me about it”

Vince: “I know but leave it alone!” … So she ‘says’ that he dont have feelings for me and he told her that personally,but in a way I think shes lying because unless she shows me the text then I will believe her.When I asked her if I can talk to him about it she said “Nooo!dont he’ll be mad and he wont trust me or be my friend” then I told her “Why not?I wanna talk to him to see if its true” then she kept telling me to NOT tell him.But I really wanna see if what she said is true…Is what vince said about “why would you do that?shes your bestie,why would you wanna hurt her??!” is that bad what he said?(I dont think so)…Plus she said that vince didnt wanna tell me because he didnt want me to be heartbroken or sad…is that good?does that mean he cares?…

Even if he doesnt like me like that,its fine if I still have his friendship,right? I just think she wants him all to herself because I asked her if she likes him and she said “Y?I dont see why it would be a problem? “ dont you think she should care for my feeling(even a lil bit)…this is one thing I think is true…”EX BOYFRIENDS ARE UNLIMITED TO FRIENDS,THATS JUST THE RULES OF FEMINISM’’…Am I right to the girls that had their hearts broken by friends who dated their ex.?

So please give me advice on those questions I asked above…im superr worried right now and I just need more than 2 people to give me advice…If something like this happened to you…feel free to comment this and tell me about it,it’d make me feel less alone :)