Sometimes I find life to be really lonely... does anyone else feel like this?

I live in a foreign country with my husband far away from my family..
Sometimes I miss my family but then I realise I don’t really have a family.. cuz most of my family is so dysfunctional I am happier living far away from them…there is just little sense of togetherness and family in my family.. everyone is selfabsorbed in their own lives.
Then the feeling of not having a family outside my husband makes me feel really sad…cuz I feel like if anything were to happen to him I would feel so terribly lonely…
I have friends but I feel like friends can never really fill a void in your life.. cuz they are busy with their own lives most of the time and have their own families to turn to when they have a problem…
On the one side I am happy that I am living the life I always wanted travelling around the world and living in a city I wanted to live in but most of the time I feel really sad and lonely inside..
I often feel like I might end up a really lonely old lady…
Is this just the way life is for some people?
I don’t feel like building a family with my husband will make things different (as my father says).. I feel like it would make things even worse as now I would be worrying about the fact that my children have no support network outside their father and I…
I really envy people that have families to visit on the weekend .
I hate this feeling…. and often feel really stressed about it…
My husband sympathises with me but I don’t think he truly understands how I feel as his family is not as dysfunctional as mine and his parents are not very far away.
How can I feel better…is it possible to get rid of this feeling?
I feel like maybe it is a deeper psychological issue stemming from my childhood… that growing up I always wished my family was normal and now that the pressures of adulthood are with me that longing is even deeper and more painful…
In my family my father and my two brothers are the only ones I have a normal relationship with but :
a) my father is in his 70s now and I often worry that soon he might be gone…and it would hurt so much cuz he’s the only one i can call up when I feel sad and lonely and can give me sound advice.
b) my brothers live far away in another country and are busy with their own lives.. we meet once a year and correspond sometimes by email and by skype… I thought about moviing to the country where my brothers live and my husband said he won’t mind If I want to in the future… but that might be just that sometime in the future.. also I am not sure I would be happy living in the country they live in.

Any advice people?