Teimlodd yr aer oer ar eu hwyneb wrth iddyn nhw gerdded trwy Barc Cenedlaethol Eryri.

They felt the cold air on their face as they walked through Parc Cenedlaethol Eryri.

Roedd y ddaear dan draed yn feddal, wedi'i gorchuddio â dail melyn ac aur.

The ground underfoot was soft, covered with yellow and golden leaves.

Roedd yr hydref wedi cyrraedd â'i ryfeddodau lliwgar, fel palet peintio.

Autumn had arrived with its colorful wonders, like a painter's palette.

Gareth a Eira oedd yno, yn cerdded ochr yn ochr, yn arafach nag arfer.

Gareth and Eira were there, walking side by side, slower than usual.

Roedd eu bywydau wedi newid yn llwyr ers geni eu mab cyntaf, ac roedd y pethau bychain fel mynd â'r ci am dro wedi mynd ar goll yn y mêl.

Their lives had completely changed since the birth of their first son, and the little things like taking the dog for a walk had been lost in the chaos.

"Yn olaf, rhywfaint o amser i ni," meddai Gareth yn gollwng ei gyffro, ond roedd llifoedd o feddyliau am waith yn dal i redeg yn ei ben.

"Finally, some time for us," said Gareth, letting out his excitement, yet streams of work thoughts were still running through his head.

Roedd y datganiad yn teimlo'n ofidus; doedd ddim yn gwybod sut i drosglwyddo ei feddwl oddi wrth waith i'r amser gyda'i wraig.

The statement felt awkward; he didn't know how to shift his thoughts from work to time with his wife.

Roedd Eira yn edrych arno, yn gwybod bod ei meddyliau'n gwrthi yna.

Eira looked at him, knowing his thoughts were elsewhere.

"Gad ddyfynnu ar gyfer yr wythnos," meddai'n annwyl, yn ysgwyd ei law yn wael.

"Let's make a quote for the week," she said gently, shaking his hand loosely.

Roedd hi angen iddo fod yn bresenol.

She needed him to be present.

Roedd hi angen bod gyda chydymaith oedd yn deall ac yn cefnogi adeiladu teulu.

She needed to be with a partner who understood and supported building a family.

Wrth i'r haul fachlud, gorffwyntiwyd y trigddyn ganddynt, a penderfynodd Gareth wneud y penderfyniad mawr.

As the sun set, they were enveloped by tranquility, and Gareth decided to make a big decision.

Gadawodd ei ffôn yn ôl yn y car.

He left his phone back in the car.

Roedd e'n gwybod mai dim ond ffordd i ffwrdd oedd i sicrhau bod yr amser gyda'i gilydd yn unig.

He knew it was the only way to ensure their time together was undisturbed.

Trodd at Eira gan ei chofleidio, ei wyneb yn ysgafn gyda phenderfyniad newydd.

He turned to Eira, embracing her, his face light with newfound determination.

Wrth iddynt gyrraedd y coed derw hynafol, adeiladodd Gareth dân bychan wrth ymyl afon.

As they reached the ancient oak trees, Gareth built a small fire by the river.

Roedd y lle yn dagétig o hudol wrth iddynt eistedd wrth y bonfire, gwydryn o ddiodydd cynnes yn eu dwylo.

The place was magically enchanting as they sat by the bonfire, a glass of warm drinks in their hands.

Roedd Samhain, Calan Gaeaf yng Nghymru, yn awyrgylch lle gallai rhyfedd a gwirionedd gael eu rhannu.

It was Samhain, Halloween in Cymru, an atmosphere where mystery and truth could be shared.

Roedd Eira'n teimlo'r amlbwr... y cyfle i siarad.

Eira felt the opportunity... the chance to talk.

"Rydw i wedi bod yn teimlo'n unig," dywedodd Eira'n ofalus, ac yn eglur.

"I have been feeling lonely," said Eira, carefully and clearly.

"Meddwn i ddim eisiau gwneud i ti deimlo felly," meddai Gareth â diffuantrwydd, "ond mae cael babi... mae'n newid popeth."

"I didn't want to make you feel that way," said Gareth sincerely, "but having a baby... it changes everything."

Roedd yr ateb di-waith honno'n meddwl popeth.

That candid answer meant everything.

Y ddau'n symud yn nes at ei gilydd, roedd pob un o'r geiriau a rennir yn cryfhau tystiolaeth eu perthynas.

As they moved closer, each shared word strengthened the testimony of their relationship.

O dan foliant y lleuad llawn, cytunon nhw gadw addunedau newydd.

Under the praise of the full moon, they agreed to keep new promises.

"Rydym ni yma gyda'n gilydd," dywedodd Eira.

"We are here together," said Eira.

"Fe gyrhaeddwn ni drwy hyn."

"We will get through this."

"Bydda i'n fwy presennol," addawodd Gareth, yn edrych i'w llygaid.

"I will be more present," promised Gareth, looking into her eyes.

Wrth i'r nos dynnu i ben, roedd yr ysbrydion hwylus o Samhain yn tynnu'r perdeion rhyngddynt, yn gadael ond cariad ac addewidion i'r dyfodol.

As the night came to an end, the accommodating spirits of Samhain drew the curtains between them, leaving only love and promises for the future.

Roedd Gareth a Eira'n gwybod eu bod yn pâr; atri chi, yn well nag erioed.

Gareth and Eira knew they were united; stronger than ever.

Roedd arfer bod gyda chwrdd ag ysbrydoedd sy'n cysylltu eu dyddiau goroesi i dirweddau perifiol.

It had been as though they were meeting spirits that connected their survival days to the ethereal landscapes.

Rhwng y dail syrthiedig, y cerrig hen, a'r ser ar dathliad Calan Gaeaf, adferodd y pâr eu cysylltiad.

Amidst the fallen leaves, the ancient stones, and the Halloween celebration, the couple renewed their bond.

O dan serenlliw hydref Eryri, roedd eu bywydau newydd yn cael eu cychwyn eto, gyda chariad a dealltwriaeth yn ganllaw.

Under the autumn starlight of Eryri, their new lives were starting again, with love and understanding as their guide.