Because I can and ramenfoodles asked me to and it brought me happiness

Their relationship would be pretty similar to Liam and Marks if I'm being honest here. Basicly two nerds nerding out over dead memes and doing anything they can to avoid any physical activity. Sophie does like to go on occasional walks through downtown and look at the shops but she don't buy much. They'd call each other stupid nicknames and wrestle over the last french fry, you know, the usual things. Sophie would laugh so hard she'd be dead on the floor because Mark dropped his hadbrowns and vice versa. Actual thing I've done.
HOWEVER
They will have their ups and downs! It'll take Sophie a fair amount of time to trust Mark with really personal stuff, and sometimes she'll be a little cross at Liam for his "poor character analysis" but she means well ^^. I'm sure they'll have fights and that's okay. Sometimes they say things and be a little rash, but no one is perfect! And neither are relationships. I feel like they'd both feel like it was their fault and don't want to apologize because some people are like that.

Here are some lovely ideas for happiness reasons

- Mark letting Sophie win at Mario Kart because she's had a bad day

-Sophie helping mark dye his hair when it starts to fade

-Chineese and movie marathon™

- "those are my french FRIES-"
"Shut it nerd I paid for them"

-"you cheATER"
"I AM A STRATEGIST"

-"I love you"
"...Hi.... Wait wut-" (actual thing I've said)

Umm.... I hope this is good!! Please let me know if I should expand on anything!