Why is he doing this?

[Chan]

My friend is a mysterious type, who likes to keep secret and never to tell anyone. He got fear of being betrayed, while I'm not, well, that's fine. I'm 17, he is 17, my girlfriend is 15.

So, my friend knew her, through me, on Facebook. So he added her, things happened a lot, so he stopped with her, and continue, then stopped again, but now, he got back into her again. I'm okay it, but still, something not good for me. Because now and before is different, before this she is my friend, but now she is my girlfriend, that's the different.

Her treatment to him is just okay, but still, I wanna get the best, who else, as a boyfriend, doesn't wanna get the best from their girlfriend ? My friend didn't talk to any girls ... except her, my girlfriend, I feel a little weird. He told my girlfriend, that he likes a girl in the same age, but I don't know exactly who is that girl. So, there was once, because I really care about her everything, so I always tell her to sleep before 2AM, but that time, my friend called her from 11PM to 3AM, the heck was he talking with her that long ?

And he likes to write some song lyrics related to 'love' to her. Also fine. But now, I just wanna know, why did he said " I do all these things ... because I likes a girl who is in the same age with me" , why won't he stop talking with my girlfriend, and start talking with other girls? Or instead, he start to chase the girl he likes, I just wanna know ... why is he doing all these things ... Please tell me..

[JL]

Sounds like he's crushing on your girl. Tell her she needs to choose.

[David]

Dude, he seems into your girl. Talk to him and tell him to lay off. That isnt cool of him to be doing that stuff. Also, watch out becaue your girlfriend doesnt seem to have any problem with him. Just be careful, i dont want to see you get hurt. But your friend and girlfriend are acting sketchy and weird. Best of luck my friend.

[Tande]

Yes,I think David give a good answer to you .