A passive fear

There is a lady who lives in my neighborhood , is in her late 40s. She has absolutely nobody of her own , absolutely alone and may be lonely as well. She does everything by herself and on her own. I have started harbouring this passive fear , that I may also end up to be like her . The reasons of my fear are not really unfounded , my profession may require me to get transferred in every few years. In that case, I am afraid , even anyone would want to get married with me or not. I don't have any siblings either. And, my friends are not particularly very consistent in terms of being in touch. I dread loneliness and lack of companionship.