Supercherry is right. Have you read John Gray's 'how to want what you have and have what you want'. It's a very good book and I hate self-help books. but it's all about your different 'tanks'. Family, career, relationship, social, interest.
You have to fill them ALL up even if you are only interested in relationship.
At the moment I'm not even going there! Also single 3 years and I don't want to be like kerry katona. My standards are so high now. I don't mean, 6 foot one, astronaut mike dexter. I just mean, such a kind, decent, good-humoured person, that somebody else has most likely snapped him up. So, stay single it is then.
I don't think the wrong relationship will cure loneliness. Don't turn into Kerry Katona! lurching chaotically from one disastrous relationship to another. FAR better to be single.
Re-build yourself. I'm thinking that being single for another few years will be the making of me. Will make me properly independent. (financially and practically as well as just in spirit). I do like socialising by the way, I'm not somebody who doesn't need people or company.
Think about reading that book, I read it when I was feeling low years ago (pre-kids).