Why relationships are fun from the beginning but gets sour with time.

Don't you always wonder why
relationships are fun in the beginning &
then it feels like something isn't there
anymore later on?
It's because someone stopped doing what they did to get you and now that you're theirs, they feel like they don't have to try as hard,they feel like they don't have to do as much.
Before, they used to pay attention to you, text you all the time, reply back quick, be on the phone for hours, have so much to say, always doing this and that for you when you don't even ask them to, be all over you and now, they keep their hands to themselves, they have nothing to
talk about, conversations go sour, not
making you feel like you're wanted by
them  and that's when you guys start
drifting.
If you want your relationship to last
longer, never stop dating each other,
never stop doing the things that made
your partner fall in love with you, be
creative, invest in your relationship,
maintain the communication, be open to
each, be God fearing, trust each other,
always forgive and forget, be patient with
your partner, be faithful, be
understanding, keep your friends and
family out of your relationship,
avoid exposing your relationship
(problems) on social networks, never
stop caring about each other, avoid
listening to rumors, sacrifice for
your relationship. Respect your
partner, be a good listener, be
appreciative and most importantly be the best of friends....