Well, personally I don't think there's any problem with either of them dating after the divorce. They're all adults and we really don't know their situation at all, but I just hope that neither Jewel nor Ty introduce their boyfriends/girlfriends to Kase too soon. If their relationship fails then it could mess with his head to not see that person again. As it is, though, I'm sure both Jewel and Ty are smart enough to not do anything drastic to compromise the relationship each of them has with their son. We still see Jewel with Kase so there's no way she'll let any woman "replace" her.