No, she says they've been together longer than they actually have, to, in her mind, make their relationship sound more valid and also to try and cover up that less than a year into the relationship, 19 year old Dingle accidentally on purpose got up the duff with alfeh, helps with her saying "it was planned" so don't trust her "calculations."
According to Mandy Dingle, they've been together "for 10 years" since about 2019, one time she said that a while ago it would have meant beaver was seeing her when she was 15
that's why I take the most accurate guide to be Twitter posts, they were long before bogtrotters "influencing career" and therefore less likely to be subject to any narrative pushing.
She was grotting about as a groupie for the rapper example when she was 17, hardly what you'd do if you were "serrrr serrr in luv and stuff"