>>539624684
I can't think of any in-character justification why a good commander would pick Wenduag for his party, but maybe you're a better mental gymnast than me. There's nothing mechanically preventing you. You can also recruit her later, by passing a skill check, and have both in your party.
If you start romances with multiple characters, they'll eventually ask you to pick one. There are no other drawbacks. If you get an opportunity to fuck someone before this point, that's a freebie.