<human>: Can you succinctly summarize the text in 1-3 sentences?

I started university about a month ago. I made a friend on my first day. A nice guy, I also kept my eye on a certain girl (Meg), so I started talking to her and everything started going well, until my friend, let's call him Redge, started hitting on Meg. 

Whenever I'm with her, he's there. I've told him I like her, to which he replied saying that he'd never try anything... The annoying thing is that he's very close to a girl (Ellie) back at his previous home (circa uni home) and she's coming up next Friday, yet in the presence of the Meg, he refers to Ellie as a 'mate'.

What should I do? I don't want to lose my only friend on my course. But I also want him to know I'm not comfortable with his conduct.
<bot>: new friend i made on my course is basically flirting with a girl i like. Is it worth losing a friend over a girl who may or may not be into me?