Is my guy friend into me?

Horseluvrrr
Hi y'all! so I have this class w my friend, we met in another science course a few years ago didn't talk for a few years then he hit me up saying hey we have this online class together and then he started FaceTiming me to study together. When we met I had a boyfriend then he had a girlfriend and he never used to FaceTime me when we had this tough Chem class together a few years back it would just be we would text here and there but he always FaceTimes me to study but we don’t end up studying we end up talking about literally everything else for hours. At one point he brought up his girlfriend and I thought nothing of it like people can have friends of other genders however Monday for example we FaceTimed and he called me like always and I would try to get us on track and he was like “it’s fine we have until Wednesday to study for the quiz” and then I told him I dropped the class yesterday cus I also work and I need an A so I’m taking it in the summer he was super upset I dropped and was like “ok well just study with me” but again today we would talk about everything else and I can’t help but feel like he’s making excuses to talk to me... and then mentions his girlfriend cus he feels guilty. I may be reading way into it and found it innocent at first but personally if I had a boyfriend and he FaceTimed a girl for hours especially if they didn’t actually even study at all I’d be mad. And two of my friends have said he’s probably making excuses to talk to me and I don’t want to call him out for having a girlfriend and look stupid and accusatory if he’s not trying to flirt with me but I don't know I want to know what you guys think and if he is flirting what you would say the next time he wants to FaceTime like hey maybe your girlfriend wouldn’t like that or something I don't know I’m not trying to get at a guy who’s taken
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+1 y
I noticed on the facetime call too he was stretching with his arms behind his neck and I noticed how big his muscles were and was smiling at me the entire time and he has called me "bruh" before but I know couples who do this or dude kinda jokingly and I also thought maybe he feels guilty about having a girlfriend and facetiming me under the pretense of school
Is my guy friend into me?
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