I'm early 30s, 1 DC and perpetually single. Awful luck with men, 1 serious relationship in the past 10 years (lasted 1 year and ended in heartbreak).
I don't generally have issues with self esteem (I have my moments like we all do of course) or self worth being tied up in having a man or being in a relationship but I'm incredibly sad that I appear to be facing the prospect of a life alone. I don't attract men generally and when I do, I'm never quite enough for them. I'm not even sure what enough is but I know I wasn't it for them. My ex didn't love me enough to work through the first hurdle in our relationship the way I was prepared to and the bloke before him lead me on for the best part of 3 years before admitting he was still in love with his ex.
I'm fortunate to have a beautiful child, great family and friends, solid career but relationship wise, I'm a failure 
When I was in a relationship last year, I thought I had found the man I was going to marry. Now I'm right back to square one of feeling completely undesirable. I don't have a "type" so the common denominator is me. Most of my friends are in relationships or getting married so I can't really talk to them because for the most part, they can't relate. Those that aren't married/in a relationship don't understand my perspective because I have a child so I'm deemed to be in a better position" than them (their words, not mine).
Just feeling sad and lonely and needed to get that off my chest 