Also:

Stop sending romantic letters to women you're interested in. Gross.

You send romantic letters to THE WOMAN that you're actually in a committed relationship with. Not just flirty prospects. Waste of time and energy.

Your most valuable asset is your time and energy. Imagine the benefits to you and the world around you if you spend that time and energy on improving yourself and your knowledge of relationship dynamic instead of pursuing some "hot and cold" girl who confuses you.

Think about it