You are going to have to conserve your money to retain the peace in your friendships -- some folks are letting the green stuff get in the way of things. And keep in mind, money isn't the only thing that's green. Envy can become a wall between the two of you. It's up to you to make sure you master the balance between not making an issue of it, but also considering it when social events are called for. When in doubt, keep things modest and affordable.