ive heard of people specifically taking SSRIs with MDMA to allow better recovery/better high...although...we still dont fully understand much about the medications  let alone our brains so keep in mind you're taking a big risk, specially since youre not mixing MDMA, youre mixing Ecstasy, which could be anything from pipecleaner to ketamine to meth. So...continue searching and wish both you and your lady friend the best and safety