A lot of people are single (including me), and it can feel a bit rubbish especially at an age when it may seem that *everyone else* is in a relationship. Of course, that's not true, and it's important to realise that relationships are a lot of hard work, and it won't all be happiness and roses when in a relationship all the time. The thought of having someone to go to all the time, and the stability there, and also the dependence from them is quite nice however.
As a lot of people have pointed out, you shouldn't be needy, because it may not be all that, especially if you take the first available opportunity. So take your time, and something *will* turn up. Incidentally, if there is someone you have your eye on (I love that phrase) then tell us about it, and maybe someone can help.