It was a good first step! Not huge but not small either. See if the wine was the trick or your cock sleeve & ask if she is now more open to a "bigger" dick. I would continually remind her of the fantastic orgasm she felt & that you can't seem to do that for her by fucking with your penis, but you really want her to experience bigger orgasms. Maybe see if she'd try a huge dildo while you masturbate next to her.
Meanwhile, start scouting for a friend who you think would be attractive to her & start that conversation with him.
Keep trying buddy...you'll get there.