To optimize your relationship portfolio, you must balance your resources and efforts across the four quadrants depending on your objectives and priorities. Nurturing relationships requires building trust, rapport, and understanding. You should communicate frequently and openly, demonstrate value and commitment, seek feedback, create joint plans and goals, and address issues. Sustaining relationships involves continuing to deliver value and satisfaction, communicating regularly and effectively, recognizing loyalty and referrals, exploring new ways of collaborating and innovating, and monitoring performance and risks. Growing relationships involves identifying gaps and opportunities, communicating clearly and persuasively, offering solutions and benefits, negotiating terms and expectations, implementing actions and evaluating results. Lastly, exiting relationships should be done respectfully and professionally. You should explain the reasons for the exit, provide alternatives and support, fulfill obligations, and end on a positive note.