You really need to work on your self esteem...beauty really is skin deep...I just had friends...in her sixties and in his eighties get married!...while she might be considered good looking for her age he certainly isn't, in my opinion, physically handsome...but he is very nice and a real kick to be around...which is what attracted them to each other...
You are loved...you have children, I hope you have friends that love you too...I understand the feeling of never ever being with someone you love again...but if you KNOW that to be the case then it really is time to put the focus on you and stop the worry...because that will age you and make you less attractive as a person!