Love triangle advice
So I like this one boy (he's my friend, but he doesn't know that I like him). The thing is, he clearly likes my friend (he even once told her directly) - and recently, he started to flirt with her openly. When I asked my friend directly if she likes him back, she told me she doesn’t, that i really don't have to worry. She even said that at some point in the past, she literally told him she doesn’t (and never will) like him like that because he isn’t her type. But despite saying that, she still lets him flirt with her. She doesn’t set any boundaries at all — not verbally, not even nonverbally. And when I asked her if she could maybe talk to him again or at least make it a bit clearer (because once she got to know that i like him, she told me she's uncomfortable with this whole situation), she told me it’s pointless because “she already told him once she doesn’t like him like that.”, so like he already knows (which is theoretically true, but her current behaviour doesn't match her previous words - so he has no reason to act on them). But now I'm wondering if she's uncomfortable with his behavior towards her in general; or she's not telling me the full truth because she knows I like him and she doesn't want to make me feel bad... I don’t want to accuse her of anything — I just genuinely don’t know what to think anymore. And on top of that, I can’t tell the guy how I feel, so I’m just stuck watching this dynamic play out and overthinking everything. It hurts to watch them, and it's making me feel so bad that I've decided to have a talk with her, and tell her that I will have to limit my interactions with both of them (which is going to hurt on it's own because she's one of my best friends)... What are your thoughts about this whole situation? What would you do if you were me?