I'm too weary to bonk

I'M too exhausted for sex and this upsets my husband. Not only do I work full-time, but I help my elderly parents and care for our teenage sons. The last thing I feel like at bedtime is any form of physical intimacy.

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My husband accuses me of being selfish and cold, yet, on the rare occasions we attempt sex, he either struggles to get an erection or doesn’t orgasm at all.