<human>: Can you provide a brief overview of the text?

So my best friend is in a relatively new relationship with his girlfriend (about 2 months at this point). And his girlfriend often joins us when the guys hang out (something that's annoying in itself). But he doesn't get that nobody wants to see him kissing on his girlfriends face all the time. 

It's not a case of me disliking his girlfriend. She's really awesome and fun. And it's not a case of my being jealous. I've had a girlfriend for about 3 years. 

I've made the regular hinting jokes like "Get a room" or shielding my eyes and saying ew. But he doesn't get it. 

How do I bring this up without being a dick?
<bot>: My friend is all over his girlfriend when it's not just them. How do I tell him without hurting his feelings or our friendship?