It looks like a Silene species. There are about 700 species of them, so I can't be any more specific without doing more research. Where exactly in the Middle East are you? Was this plant growing in the wild, or was it from someones garden?

Thank you so much.

Happy to help.

After you mentioned the name, I searched through "Google". Could it be "Pink Campion"?

Yes it could. Silene species are often called Campion or Catchfly. I'm just basically in the know about the ones that are here in the states.

Stem foliage is like Silene armeria

Silene armeria usually has its flowers in multiple clusters. This plant has single blooms? It looks like maybe there would be small clusters if the other bud stems weren't drooping down. I have to question if there could be a problem with the health of the plant. It's in a very small pot, and I think silene roots run deep. Usually when I buy these plants they come in the extra tall pots to accommodate the roots. Can the term in situ apply to a plant in a pot, or just to one that's growing in the ground? The plant does have a beauty to it, in a slightly tortured kind of way.

It has small clusters.

It growed as a weed beside a rose in a big vase and I detached it yesterday. You are right the pot is too small. I don't know it would survive, if I change the pot now?

You are great. "Vaccaria" seems right. Thank you.