It depends on what stage of life you are in and if you are looking for a short term relationship between 6 months to 2 years
Also within the first 6 months to two years it's called the honeymoon phase of relationships
Once you start taking your partner for granted it's then you realise why it's important to build the relationship
Find reasons stay together that not just passion and sex
Also a womans bosom does not really factory when choosing to build a life together it's compassion, kindness, benevolence
Intelligence, emotional intelligence and the ability to converse in good quality conversation
A woman is not a sex toy and a man is not a joystick
Don't get me wrong being physically attractive to one another is important but over factors do play a big part
Do you have the same life goals do you want children who's going to look after whose parents when they get older
How many times a week will you both go in dates
Do you both still want to spend quality time together and do you both want to put each other on their backs