Is my friend being a friend or trying to make me depressed?

I have a friend who I have known for the past 18 years on and off and we get on well, he has always been a bit moany and groany and he has flash ideas about travelling and getting jobs abroad of which I have no interest. These past few years we have come to rely on each other, we are both 25. For the past 4 months I have been going out with someone (my first girlfriend), he has never had one so far and all I get is do you want to go travelling, my life is so s**t, what should I do? when he knows I want to move out with my girlfriend in October. Lately me and my girlfriend have had some disagreements and the first thing he said was you should do what you want most of the time and that I shouldn't settle for second best when I know in the back of his mind all he wants is his drinking buddy back

This is a hard one. It looks as though you're coming up to a fork in the road. It's hard to let go of a friend that has been in your life for so long, but at some point, most friends end up in different stages of life, making it very hard to hold on, since you have less and less in common as the years go by. I think you really need to sit down and have a talk with him. If he continues to bring you down and try to sabotage your relationship with your girlfriend, it's time to let go. No friend- no matter how long you've known them- is worth ruining your life. You'll never be what he wants you to be: the old, younger (wild) version of you- and he obviously is not growing up any time soon. The people you hang around shape who you are, and you don't want someone in your life who is giving you bad advice, bringing you down and not letting you grow up b/c they haven't.

You got to make a choice, either you want to be happy or u just want to make your friend happy.
Think seriously about your feelings.
Drinking buddies come and go but u need to find someone that will stick by u like glue.
Start dating and worry about u for a change.

You are probably right. It's tough to balance a new relationship and a strong friendship you've maintained for a while. I wouldn't place too much emphasis on what he has to say about your relationship. I would try to balance your shedule so it allows room for both people. I'd also explain to him that he means a lot to you as a friend.
It's difficult for friends when they get into this situation. Try and treat him as you'd want to be treated yourself and take most of what he says with a grain of salt.