Been dating a stunning girl for about 4 months now - she is a few years younger than me at college and there is a guy who she gets on well with at college. She started getting texts from him so i asked her who he was. Now he seems to be desperate to meet up with her asking her to: 'do some revision together' . 'go for coffee' 'come out with him and his friends'.
So far she hasnt met up with him to my knowledge. she told me that she is just friends with him and doesnt see him like that and that she didnt think he was looking to get with her (obviously he is). She asked me today whether I'am comfortable with her texting him and I said "sure I'm not too bothered as long as he's not tryna hit on you".

Whats the best way for me to shut this down with out pussying out and tell her i'm getting annoyed by it and dont want her meeting up with him.

What would be the likely outcome if I told her to message him making clear that she's not interest in that way.

Im currently finding myself trying to sneak a look at her phone for messages at every possible opportunity to see what he's saying to her.

Don't descend into jealousy and insecurity, which will push her away from you. You told her it doesn't bother you, and it obviously does and understandably so. I'd keep cool for now but keep an eye on the situation and be ready to next her if she is out of line.

I think if it does bother you, then you should tell her this, rather than saying it doesn't because you're afraid of being seen as insecure and then letting it eat away at you. You can tell her in a calm and non-beta way, but probably not right away given what you've already said.

Mate, don't even think about looking at her phone, facebook etc. If you do. Your relationship is over. Period.

If this bothers you tell her. Otherwise you'll just get insecure and eventually blow up and that will be bad.

She even asked your opinion about this, why don't you answer honestly instead of trying to act cool when it's clearly getting on your nerves.