I'll just chime in about sex life while fasting....and I hope others do also.
First, let me lead off with, this is from a guys perspective. I have no clue how it is for a woman. :) So, I can only offer advise/comments that are more directed towards men that will read this.
Secondly, I suppose it depends on what kind of love life you have. I've really only experienced the following two types of love play during my fasts/cleanses.
1. The Lustful, Animalistic, Fast paced, Physical release, lets do this every day oriented love life. And the...
2. Flowing, Breathing, Energetic, Communicative, Mind blowing, ::sigh:: I swear I'm satisfied until next time manifests...whenever that is...oriented love live.
During my first fast, my partner at the time looked forward to sex every day and really was only into the physical pleasure of it. I worked very hard to pleasure her but I noticed that I didn't quite have the gusto for sex everyday nor for the duration that I learned she 'expected'. Well, her reactions during my fast were a sign to me that she wasn't all that into me. Many problems in that relationship became clear during and soon after my fast. I ended that relationship within a few weeks of completing my fast.
you might be thinking..Oh crap. but wait....
During my second fast, my partner and I, we were learning and practicing Tantric Sex together. I can say without a doubt that the fast/cleanse GREATLY increased our experience and pleasure. There is very little in the abdomen, very little external pressure, belly breathing was MUCH easier, and love play and intercourse with her lasted hours without feeling tired and ranged anywhere from 1 to 10 in intensity. You just need to match how you feel with what's needed. I believe we made love three times (and not sure how many orgasms I had. At least 2 or more per time)during my 10 day fast, but the results lasted much longer then that. We would make love when it felt right for both of us and we're very satisfied. She moved away to help her family and I later moved to California.
I've fasted a number of times since then when I did not have a partner, so no input to offer during those.
During this current fast, again I'm with a wonderful partner and we are both energy workers and have studied Tantric Yoga (the practise not just the SEX), and many forms for breath work. Our time together...well, all this morning, afternoon and evening, was incredible and blissful. I even enjoyed cooking her a great lunch and dinner and had no problem preparing it nor being with her as she ate. My energy felt much cleaner, stronger and in better connection with hers. She could sense that I was more relaxed and comfortable in my body, so in turn she was able to relax more. Before hand we were talking and I spoke to her my concerns surrounding our love play during the fast...fear of lack of stamina, ability to make love more than once..etc, etc. Well after being together all day and making love a number of times she was preparing to depart. After I walked her to her car, she gave me a kiss good bye and started giggling and laughing. When I asked what was so funny she responded with a question of her own, "If THIS!! ::wide eyes and big smile:: is what happens during one, just how long do you think you can stay on this fast thingie ::wink::".
So, I think it all depends. From my experience alone, it seems that the more energetic and emotional the love life is, the better it is when the body is clean. And after the cleanse/fast when your energy levels are back up and you stay clean, it's still just as great.
Oh one more thing and this is not directed towards you or anyone in particular, it's just something I've noticed and from talking to many of my friends they feel the same. Don't be surprised that if you allow yourself to be open and receptive during this cleanse, you might find yourself releasing/reliving old emotions. Be kind to yourself and to your partner.
If you are feeling old anger, frustration, sorrow, guilt, etc etc..don't have sex until after you cleanse your body (lavender bath, Sea Salt baths, meditations, clearing, just something to clean your physical and subtle bodies) or else you may just deposit a lot of that anger (or others emotional energies) into your partner's genitals and abdomen. Then THEY have to deal with it. Actually, if you are feeling anything but Love, Gratitude and Joy, my teachers have always recommended not having sex. With a little work you can get through the other emotions and easily get the best of emotions flowing once again.
There is also the fact that love play can cause those emotions to surface as well. Sexual energy is a very powerful healer as well.