Do not make up. this is potentially a very toxi relationship. See a counsellor to discuss and think over the type of relationships you desire and go for those. Join your local University of the third Age (U3A) find some interesting classes to attend. Talk to one new person each time. Join in the U3A social events - Christmas dinners, going to the theater, visiting museums etc. You will soon find your feet in a set of new relationships and one day you may find someone more special. Good luck.
This is what the Human Givens Therapist's site says
improve relationships — relationship difficulties are often self-perpetuating because our beliefs and reactions to one another trigger patterns of behaviour which stop us solving them. When couples want to stay together but are having problems, human givens therapists can help.
naturally you don't have to be a couple to get help.