I'm no expert at this by any means ....  Accept the fact you love your poi, then put it aside on mental shelf for a bit (its not going to disappear) then figure out what makes YOU happy ie walks in the open, jogging, gardening, dancing, going out with friends or by yourself ... live your life like you already have what you desire not like you don't have it ... learn how YOU can make yourself happy .... you were happy with your self before you met this person and they just joined in ... let go of the if, but, where and how of your relationship .... when feeling all the 'downer' things come calling realize it is just that 'a message to tell you 'CHANGE YOUR FOCUS' and refer to shelf for loving feelings .... remember how loved you felt and especially how it felt to GIVE love to your special person and be proud and happy that you CAN still give that love, imagine it, live in it, be strong in it, be happy in giving it  ... THEY WILL FEEL IT.... carry on with doing what ever makes you smile hard out!! ... they WILL join in again!