I don't think it pathetic, I spend most my weekends alone friendless as well. Difference with me is I, for the most part, choose to not make friends. I wouldn't say I am not friendly, but having many friends proved to be some what as much of a chore as dating. I had friends getting upset with me, getting jealous that I was hanging out with other people, being upset when I didn't want to hangout with them, not wanting to do the things they are doing, ect...
I have come to enjoy myself more when I am by myself and of course I socialize with people mostly through the internet these days, the internet holds more interesting types and more mature people than the city outside my flat.
Pathetic as some may find it, some days if I am feeling overly lonely, I'll go onto sites like omegle for a laugh or two. Being drunk helps.
I still have some good friends, but they are busy and do different things with there time for the most part.
Making friends isn't simple, people are very closed in and don't seem to want to branch out from the friends they already have. Not everyone is like this, but alot I have come to know. I do understand your frustration with it, but there is little advice that anyone can give you that you don't already know, it will be difficult at times and it will be awkward.
Why not join some sort of club or something at a local comic book store? Or maybe try out the internet social life? Get a camera and try out youtube, you are bound to make many friends that way. Or if you are feeling lonely you could always message me, as I am usually on my laptop when I am home. I am easy to talk with.
Most friends I have met in my life just kind of happened you know, through chance, and in my experience "trying" to make friends isn't easy and it's always awkward.
*Also if you like videogames and want to be social on weekends, why not join a clan with full mic support? You can socialize with real people around the world and play videogames together. Just a thought.*