I have to say that I don't feel at all for Lionel being "upset" as he has massive double standards. It's alright for him to talk about deepthroat or mime to be taking out a huge schlong but unacceptable if any of the girls act that way. I also very much think he would much rather prefer to be in with the young totty than the older contestants, as numbers start to dwindle.
Personnally i think it's a bit "eww" to sleep with as many people as they all claim to be and then brag about it (that goes for the men as well as the women). I know that it's probably none of my business, and whatever happens between consenting adults is their look out (as long as no one is getting cheated on), but by bragging about it on a public forum, you can't help if people form an opinion about it. I think that Dappy is totally wrong and has massive double standards as he seems to be saying that it's alright for men to do that and not for women. He is also a hypocrite as he didn't seem to have any qualms about the shenanigans in the bath.
If Lee is that much in love/likes Jasmine so much, why did he string Casey along (and still is)? She asked him outright several times whether he wanted them to "just be friends" / "stop the cuddling, etc" and he kept saying no. I know she should tell him to get stuffed but to be honest, if you are young and like someone you kind of blinker yourself to things, i know i did. she's probably focusing on the fact he is affectionate towards her, tells her he doesn't want the flirtation to stop, and ignoring the rest. If he had any morals, he would have "finished" with her and moved on, not keep basically two girls dangling (who he will probably promptly dump as soon as he gets out and start crying "but i always said i didn't want a relationship!" if they say anything).