I used to believe in true love so much as a teen...as i grew my first love confirmed it but we separated since we both had our own future plans to travel to other countries.....

Over the years i either fall inlove & dont get same back or someone falls for me but i got -0 feelings for them....

It has left me to believe true love is only in the movies & in story books but in reality to see couples lived over 10yrs together means one is acting the fool to save the marriage or one is inlove & the other is coping...

Am i wrong?

what you believe in is never wrong,
but you have left out one other possibility up here...^^

maybe they both love each other and are very happy together..
that does happen quite often...it could for you or anyone.

I will say everyone is different in relationships... I believe your wrong since you asked couples can live their lives till their old ... and still love one another ... why do I think this ... from real life ... some die right after their mate when old ... they die from a broken heart of their loss of the love they shared...
an they had with that mate ... that is real love ...

True love Is not lost. Many couples been together for years and still love each other, not pretending. l know some personally.