I'll have to agree with Osuche, communication is the key to working a relationship. Understanding,consideration and trust are the results of successful communication. Sex is one means of communicating the love between you but surely not the only one. Tender stolen moments among life's hurried appointments mean as much as nights of passion when needed. It's never letting your SO forget they're your heart.
All this seriousness on just my second cup of coffee.... what was I thinking? LOL

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As to marriage or celibacy, let a man take which course he will. He will be sure to repent - Socrates

Love is not looking in each other's eyes, but looking together in the same direction - Antoine De Saint-Exupery