Becoming happy and feeling beautiful may be a process. I don't know where you are at in your life, but here are two choices that you can make, if I were you.
One is that you just keep feeling lonely, not beautiful and wined up with someone who is not good for you, or someone who would just take advantage of you.
The other choice is that accept the fact about what you are feeling right now and start making conscious choice to direct your life toward to where you want to get to.
Most people just don't feel what you feel just because..., maybe there is a reason why you feel that way and even you even don't know it yet.