First off, I have to say this: Oooh, Namaste~ I certainly do like her, yes, yes. Out of all the males of mine you listed, I am most inclined to pursue a pairing with Xantus or with Croquet. While I think she and Z could be an interesting pair, I don't see him able to fully cope with her lifestyle. Her need for slipping into different bodies would probably give him the heebie-jeebies. xD; Not much gets to him, but I think that would be one thing he couldn't wrap his mind around.
As for Xanthus, being that they are very similar morally, I think they could get along wonderfully. I'm not sure under what circumstances you would like them to possibly meet, though, perhaps Namaste would be in one of her more vulnerable stages? He'd end up inclined to help her, if she was, which would break the ice. If he's helping her, he has to be around her, if he's helping her and is around her, he is likely to end up revealing things about himself. Despite everything about him, he is open to the concept of love. He would be able to understand the feelings and want to act on them, in every which manner. Of course, that doesn't mean getting married, since he would be happy just to be with who he loved.
With Croquet, I'm not too sure
how they would meet. He rarely ever, ever leaves the theater where the mafia is secretly hidden unless it is for one of his jobs. But, then again, wandering around after a job could be possible. Like Namaste, he's not the character to "fall in love," or ever realize that he has, so they are on similar terms there. He's more likely to feel like, "You're my absolute favorite person." But he wouldn't understand the concept of love, or certainly not without it smacking him in his face. Maybe it's like, "I care for you and only you, I won't marry you, but I'll never sleep with anyone else." I don't think he'd understand or see a reason for marriage, though he may go through with it, if she wanted it.
Looking at her also made think of another of my males which I didn't put up because I don't have his information written out. I'll just write stuff up right now. xD
St. Darek, "Darek," "St. Valentine," "Valentine."A son of Aros, Darek may be considered one of the man's somewhat failed children. While he may have been trained to be a killer, Darek chose not to be an active member of the mafia. At least, not in dealing with any of the bloodshed. He plays the part of one of the clever minds instead, plotting, handling deals and money matters. And, unlike many of the mafia's children, Darek has taken a true love to acting. He is very versatile and can play any part from the hero to the villain to the random bystander to that insane guy that offs himself for no apparent reason other than to make the story interesting. His very favorite thing to do, however, is play match maker. He blames his father for that, since he name translates to "Saint Valentine." He loves throwing people together and watching as their romance and love is successful. He's very good at pairing people, as he is usually very good at reading people, but, sadly, he has never been able to find love of his own.
Basically, I can see him and Namaste working out, because he's a combination of many things. He lives a strange life and is fully capable of killing, even though he usually chooses not to. Her strangeness, including her having to switch bodies, wouldn't bother him at all. He's just too used to weird to be surprised, and, of course, he very much understands love and how blind people are when in love. He has a goodness about him, even in combination with everything else, but that is what makes him interesting. He might just be what she needs. I also see the situation you suggested with Z happening, with Namaste just sort of hooking up with him and then just staying around and becoming all possessive of him. [Which she may feel she has to be, since he may have little fangirls because of his acting.]
Also, I would love to hear about your possibility for Intre whenever his character is complete~ <3