Awhh, Marco.. -hug-
As it's been said above, yes, the internet is a big place. If people standing around in-game seem to ignore you or just run off, don't let it affect you personally. Unfortunately that's a mark of society's personality nowadays, since most people get so caught up in their own business that they forget to say hello.
However, in the end, we can only control our own actions. So long as we try our best to give new people a smile and make them feel welcome, that's really all we can do, maybe in hopes that they'll do the same.
I am very sorry to hear about that person who just kind of turned their back on you like that. It's never easy, but if they're going to turn around and bite you (figuratively) for no reason, then they probably weren't worth your time, anyway. As it was said above, there are plenty of wonderful people here in the FH community, and we'll still be here to lend you a paw and smile, even when somebody else decides not to.
Stay strong, floof~