The cleaning fee is revenue on the reservation. It hits the payout, it usually gets taxed as part of the booking depending on the jurisdiction, and it isn't a segregated reimbursement account. So the money is contractually assignable, and yours says it's assigned to you. She still has a point worth taking seriously, which is that she can't see the arithmetic without reconstructing it herself, and a fee she has to reconstruct feels like a fee that was hidden.
The two structures that survive an annual statement review are both explicit. One, you charge the guest exactly what the cleaner charges you and bill your coordination as a flat per-turnover fee on the owner statement, so a $95 clean shows as $95 and your $40 shows as $40 on its own line. Two, you widen your management fee to cover coordination and pass cleaning through at cost. Same total dollars, and neither one produces a discovery moment. What she's actually objecting to is the discovery, and you can't fix that by rereading the clause to her.
One caution on repricing: $135 on a two-bedroom is inside normal range in most markets, but cleaning fees suppress bookings on one and two-night stays more than nightly rate does, because the guest sees the total. If you drop the guest fee to $95 and move $40 onto the owner statement, her net per stay is unchanged and short stays get more competitive. That's an argument you can make with numbers instead of with the contract.
Also check what your platform and local occupancy tax treatment does to cleaning fees, because that varies by state and city, and a repriced fee can shift the taxable base. Confirm the current treatment with your accountant rather than assuming it follows the nightly rate.