It is truly unfortunate that people on SSRIs can not roll. I am currently going through this with my g/f. Her depression has since reached a head and she feels she is losing sight of things that are great in this world. We have not rolled in years but she wants to because she has such fond memories of it affirming our bond as well as giving her a huge shot of happiness and something to "hold on" to, in the sense that "hey it can always happen again!'
The problem is locating something worth while (way way harder then it sounds when you have a test kit and know what you want) as well as figuring out when to plan for the medication. She is currently on 100mg of Trazodone a day, between 100-200mg depending and even though it is a lower SSRI it will still impact it. Advising someone to stop taking their meds is incredibly risky and her issue is she wants it like yesterday. So for about 6 days she would ask if it would happen tonight and everyone would say maybe so she wouldnt take her meds and then really have a hard time with it.
I wish there was some well documented thing i could refer to so I could know the time it takes to get out of her system. Like I said it sucks that chemical induced happiness can be blocked by chemicals that induce happiness.