My husband and I only have sex once every four to six weeks. the last time we had sex, he lasted longer than ever and still did not cum... is he having sex else where?

I am sorry for your situation. I have an idea of what may be going on, but it's only a guess. Your husband has low T, but won't do anything about it? He could suffer from ED. He may have a good enough erection for penetration, but not be able to maintain it. At that point, he may not get enough friction to allow him to ejaculate. He might try a while to find a right angle to get friction. If this is the case he is probably frustrated. The logical thing to do would be to talk to a doctor. However, as あなた know, some of guys aren't good at sharing feelings, and something like this can hurt a guys pride. Sometimes when a guy does not feel in control he'll flirt with women to make himself feel good または get into porn. ED does not allow ejactulation from making love, but a guy can still get off によって masturbation. Porn can be a problem. Some guys and look at it and it's no big deal. Others, become addicted. Generally the type of porn a guy gets into is not the same as a woman would. Denying that he looks at porn comes from shame. It can warp a man's perception of what is acceptable in bed, (or where ever)
Your husband needs to see a doctor. Also, I think it would be good for あなた both to see a counselor.
My アドバイス for あなた is one, remember that this is a problem your husband is having. あなた are not at fault. Do not allow yourself to accept any guilt.
Secondly, when possible, treat your husband with respect and gently encourage him to persue help. あなた do not have to give approval to his porn または anything else あなた feel violates your bond.
Your marriage can be saved and become better than あなた dreamed. It may take alot of work.
I don't know if he's cheating, I would guess no. Still keep your eyes open for signs. What ever happens, I wish あなた peace, happiness and love. God bless.

the fact that he has a low t, and/or the thyroid problem could have simply damaged his confidence, または he could have a psychological issue, try to convince him to get the low t problem checked out as it could simply be that having an effect on him mentally, if guys feel like perhaps they arent good enough または arent pleasuring あなた enough then they may have trouble with certain aspects of sex, i think before trying to sort the problem straight away, sit down and chat with him maybe hire a councellor または something and try to get to the bottom of the issue, accusing him of cheating または some other thing would not be helpful just talk to him, try to get him to confide the issues he is having with you

That made me think...Each guy is different,their sexual habits and desires too. Your 質問 just made me wonder. It's reasonable that あなた think that your husband has someone else. But, the problem may be different nature.
If I tell あなた that I had a bf who could sleep with me any time and who could cum pretty fast, somebody would say that's cool.
Not necessary. Then, I found out that he was having a few gf the same time. And I felt so bad and was humiliated and betrayed as well.
However, now I have a bf and the situation is kinda weird.
He's gentle and caring, but something's wrong in our relation. あなた see, we haven't had sex for a long time, just because I wasn't sure. I didn't want him to think that he could have me whenever he wants. Anyways, it did happen that he just could't cum! And I never figured out why.
We broke up so many times, but he always came back tho.
He does like when I'm here, he likes hugging me and all those sweet words... But,somehow I'm not happy. I feel empty most of the time. Especially during sex, he can be very cold, as if he has no feelings. I don't know... Sometimes it's very difficult for me to understand what he really wants.
Honesty is the the most important part of relationship and talk. Healthy and strong relationship is the one when あなた can speak your mind freely and be who あなた are,and when there's no secrets between you.
I believe あなた must be feeling lonely, it is hard when あなた don't know what's going on.
I hope you'll fix that somehow.
The talk itself is the best solution.
Wish あなた all the best.

Maybe he has been getting some man キャンディー on the side. ^_^

Its him, of course we know its not you.
But I can agree with him...sex isn't everything, but hell, I like a little rough up every now and again.lol
It could be psychological, あなた may need to ask him about that. (maybe a troubled past? あなた know how men 愛 to hide their feelings)
And あなた need to consider (if あなた HAVE to have sex like あなた want) leaving. If あなた really need it that much and he cant give it to you...split.
I know あなた 発言しました it isn't an option but あなた should really consider it...or accept it.

Has your husband gone on any kind of drug- prescription または recreational-recently? If he has, it could make it hard for him to climax. It doesnt mean he is not being loyal, he could just be experiencing side effects. I know antidepressents are infamous for that kind of a side effect. It could be the meds hes taking for his thyroid too....