HiCustomer Thank you for asking your question on Just Answer. By the way, it would help me to know:
-What are your ages?
-Do you live together?
-What makes you think she is cheating. what proof if any?
-Do you get along for the most part except for the communication?-Could you explain your situation a little more?Thank you again for trusting me with your problem. Please reply as soon as possible so that I can finish answering your question.
If friends are telling you she isn't doing this then maybe you should believe that they are telling you the truth, it seems like she is trying to play mind games with you to make you believe that she is cheating so to get you to do more for her. You are right with the recession it is better that there is two incomes in the household. The only way it seems you can help her is if you pay EVERYTHING and that isn't fair to you and it will only become a habit. You need to ask yourself is all of this worth and if you can honestly answer no then maybe you should think about letting her go and mature. There hardest thing to do is to let someone you love go but it doesn't seem like she is ready for marriage. Tell her that her calling you a Loser bothers you and that you do alot for her and don't deserve that treatment.
If you don't have concrete proof that she is cheating or going to cheat then there isn't anything you can do about that but trust her, she is 31 years old and needs to be more responsible for paying her own bills and buying her own food. If her brother is there why aren't they sharing the bills or do you pay for him also? There are alot of things the two of you need to help on before you even consider marry her. Ask yourself if this is the woman you want to spend the rest of your life with? If she is mentioning cheating then maybe she has thought about it before or is thinking about it and hasn't done it yet or hasn't found the person to do it with, but I believe it is just talk to get a reaction of you and to make you do what she wants to do. Relationship and marriage is 50/50 not 90/10 and if you are not getting that from here then you need to think about what she actually give to the relationship?
Unless you want to pay her and her brothers bills constantly then you need to put your foot down and make her be a responsible ADULT and that is the key word she acts as though she is a child wanting everything in the toy store, make her and her brother be more responsible or they will break you. It sounds as though you are communicating but she isn't willing to it's like it's her way or the highway and that just isn't the way life works, especially with the recession.