I saw a few of MattCs posts about his ex gf. I got the impression that she was involved with someone else and was just using MattC for emotional support. I wouldn't be surprised if the only intimate thing they did was cuddle.
He would also perform 'it' on her (he loved that scent). He mentioned she was a hardcore drinker, and it appeared as though the routine involved her coming over after all the bars closed to get her fanny munched out then crash on the sofa bed.