My (27f) friend insisted to “put to test” my bf’s (24m) loyalty thru social media. He fell for her bait.

Here I am not knowing what's worse. My friend testing my bf. Or my bf falling for her bait.

I told my friend there was no need test his loyalty but she kept on insisting and did it anyways.

And she was.. right. She sent him a text live! and asked if "he wanted to talk or was horny". He responded "both." Ultimately, he asked her to send a picture of her…

I feel sick. I don't if i should even talk him to about this or just break up with him.

Why would he talk about our future together (marriage & children), tell me about his family, let his family see me then do that..

Tl;dr My friend texted my bf online and he fell for that. He asked her for ? pic.

Edit edit: I'm sorry I'm not able to respond to everyone but i greatly appreciate the advice and caring texts. To answer a few questions:

▪︎How the convo started: She basically said "hey, wanna talk? Or u just horny?" He answered, A bit of both sweetie. But we can do whatever you want." (its a sm app where you can post whatever is on your mind and can call to discuss with strangers)

▪︎i don't believe my friend is interested in him, i think she was genuinely watching out for me (but i understand some of u think I'm a bad judge of character). Also, he didn't know it was my friend as she didn't use her profile.

▪︎ I've never denied him so far, if anything, he chooses to abstain. And I've also asked him thru phases of our rs if he's happy or if there's anything he'd like me to improve on, but his answer always was "I'm content."