How does one love everybody like brothers and sisters in Christ without sacrificing your own happiness?

Love your neighbor like you love yourself is my golden rule....but I am a romantic at heart...the other day I told my friends that this guy was super cute and he over heard me and kissed me on both cheeks...Ive been so happy ever since! But some stick in the mud might think that's flirting and get upset with me and say I'm cheating on my husband...you can't please them all....I do respect my marriage, and other peoples marriages...I just love to feel.