Yeah that is a bit my problem and worry with the Erynn character as well. My MC has feelings for her from past, but I do not see enough reasons in how her character is portrayed in game until now to see her as a strong and independent LI at the moment that you can have an equal and trusting relation with where she can be your partner. Almost at best she has more issues and needs more saving as Layla does, while at worst you bind MC to a very broken and weird person that looks pretty hot.
(Now this may change when we do know her reasons and have learned more about her last 5 years, but as long as we do not know, she stays in that limbo.)
Neither make her great relationship material, unless you are a hopeless White knight for MC though as she is now in game.