Desperate

Sometimes lack of energy and sex drive is related to emotional stress. If your friend is depressed or paranoid that her boyfriend will leave her, then these are reasons enough to affect her energy level. Because lethargy is almost always a sign of depression, you should talk to your friend and make sure that she is doing ok. Perhaps she needs to seek professional help. Let her know that you are there for her and ask her how you can help as a friend. Good luck!

I personally think some men are pigheaded enough to dump a woman because she's not interested in sexual relations. They're less concerned with why the woman is not interested in sex and more concerned with their own primal urges. I think if this is the type of guy your friend is dealing with, she may be better off without him.

I see you need I man's point of view so I will give you mine.

When it comes to sex a lot of men are gonna view sex like food. When you get hungry you are going to eat. If you are in a relationship with someone you will go to them to have sex. If you are not doing the things that will satisfy the needs of your mate then he may try to hold on but sooner or later he will be starving and will try to eat (have sex) somewhere with someone. 

I would suggest that your friend talk to her mate about this issue and seek proffesional help. She may even try telling him the true, that there are some things going on with her that has nothing to do with him but whatever it is she has a lack of energy and it is making her not feel like having sex. But because I love you and know that you desire sex I will get nake and lay there while you satsify yourself with my body. Please don't be mad if I don't get into it and please be quick because I am really having a problem, but I don't want my problem to cause our relationship to end. I love you and hope you can be patient and work through this problem with me.

I know some ladies think this may sound like a horndog but from a mans point of view we need to have sex and if we don't get it from you we are just going to get it from someone esle even if we love you. Sometime the truth is hard to bare and not a lot of men will tell you this but this is true for the most part. your man might but one of the very few who want cheat or he might just be the one who you never will find out about but you definately need to be honest with him and see how he feel also, so he wont be thinking in his mind that you don't want to have sex with him because you are out there cheating.

In a relationship sometime you have to do things you don't want to do so that you can please the other person. whenever one person is just bending over backwards for the other then there will be a problem. Whenever you are not taking your partners needs into consideration it will be a problem. This works both ways for men and women. you have to reach a common ground of compromise but most of all communicate with each other so people don't jump to the wrong conclusions. 

Obviously there is something wrong between the two . You didn't mention how long they are together but not wanting to have sex at all is some sort of a sign. A relationship shouldn't be based on it , but it is an important part of it. I didn't really understand if the fear of him leaving her  affects her sex drive or is it the love sex drive that makes him want to leave? Anyways they both are related , something is bothering her and its affecting her love life. Yes there is help for her she , needs to build up her confidence . She can't go on thinking he is going to leave her every minute. She must talk to him and she needs to relax quickly. A couple days off by herself might help.

Yes. let the boyfriend know of your feelings because if you do not, he will look elsewhere to satisfy his appetite. tell her to give him as much attention and time needed to beable to talk one on one about what each ones desires of the  relationship truly is.