Hi
Forming relationship to a level where you both couldn't be without each other takes time and dedication.These moments you create during the time being are what makes relationship strong and lasting .Falling in love is just temporarily feelin , what comes after that is really up to and your personality , how you see things and how you value you and her time together , what type of activities you do together (traveling, camping , attending parties together , even small things , touches , songs you may both like and so on .Genuinely relationships are built from memories , good and even bad memories you had with each other.Many times people tend to get bored quick , reason behind that is simple , not enough effort was put in , slowly , but surely we show our true colors after a while and he or she does not feel that the person she /he is with don't match with personalities .Assuming you are around 20-25 years old and have this need to experience bond with your date .Give it time and don't think in the way :Oh it's my fault , must be doing something wrong etc ..If these past or current dates you feel have gone nowhere , then i guess she did not deserve you in first place , long and lasting partner is coming to you when both of you match and have that extra link between you ,until then , be patient and make mental notes what went wrong and what you could do better in the future .