Don't fret!

They were soul mates. Enjoyed life to its fullest, learnt a lot from each other, held each other's hands through the toughest times.
They enjoyed that gossip, sharing the life's dreams, talking about the future all that over a cup of garam chai.
Oh, those were the care-free days where everything was rosy, everything was exciting!
And then suddenly, the college life ended and they were thrown into the big bad world.

Life changed dramatically. They decided to choose their own paths.
She met someone else and they were like chalk and cheese. Nothing in common at all.While one was impulsive, the other one was meticulous.
Given the bond that she shared with her friend (in what looked like a previous life now), she still went ahead and told her friend about the new person in her life.
She wanted her soulmate to understand what this new person means to her now. But then that was not meant to be.

She confided in her new friend as to how bad it felt, how much she needed her friend's approval, how much she still valued her friend's approval. But the relationship is now strained.

She might have lost on one but now she has a new soulmate.

It's not the relationships that change (per se). It is the circumstances that change, the people that change.
Being scared of stains and strains in a relationship would deprive you of what is in store for you.
So, go for it - stain or no stain!

This is in context with Preeti's new prompt

Can a relationship be like a tea-stain? Why or why not?