Maybe it's just what you think you feel. Maybe those around you don't show you or tell you enough how much they love you and care for you. Like Wazup said, do you love yourself? If you truly love yourself, then others will love you, because you show the world that you’re confident, strong and you believe in yourself. Make sure to tell your partner indirectly that you need to feel loved and you need him/her to show you all the time and tell you how much he/she love you by saying ‘I love you’ and show you by their action.
But don’t forget to love yourself first before expecting the world to love you