Believing you’re only half a person if you aren't in a relationship, or only half a person if you are

Expecting your relationship - either consciously or unconsciously - to live up to, (or down to), that of your parents' 

Becoming a 'Love Addict' hooked on the feeling of being in love for the first time. It won’t get you very far. The honeymoon period is always followed by a hangover period – they even out eventually

Believing that staying in a bad relationship is still better than being on your own.  Many people put up with years of misery and hardship or refuse to confront negative relationship issues because they’re more afraid of being single

Letting go of friendships and interests outside your relationship

Holding your partner one hundred per cent responsible for your happiness, or yourself responsible for theirs

Giving in to feelings of jealousy and becoming obsessed by any real or imagined incident that 'proves' your partner's love is fading 

Forgetting all relationships need to be worked at - continually!