this can be hard to hear - and but feeling like you 'need' somebody to fill a hole in your life, suggests some unresolved issues which you need to address.
it's perfectly understandable to want to be in a relationship for all the wonderful things that brings but, if you are fundamentally unhappy and think that just finding a partner is going to solve everything, you could be in for a rude awakening - you may just end up in a relationship, just as unhappy and, ultimately, more hurt and confused than you were before. you need to think about this seriously and, if necessary, consider getting some help.
there's a quote (which i am paraphrasing) which i think sums up what i'm saying succinctly: "
some people spend their lives looking for the right person instead of becoming the right person."
you may find that if you invest some time in the latter, the 'right' person will fall right into your lap...
good luck.
oh, and who cares if you prefer the company of both men and women? i like chocolate but i don't like chocolate-flavoured things. go figure
alasdair