Under this influence, honesty is hard to come by and communication gets very confusing and difficult. You, especially, have to try hard to stay away from telling your partner little white lies, because any level of dishonesty in this relationship takes on larger proportions and becomes a big deal. You could even become passive-aggressive with your partner, pretending things are fine when really they aren't fine at all, jabbing them with little hurtful comments that indicate things aren't well between you.
Don't misunderstand this tendency -- it's not that you're a bad or a mean person. It's just that something in your connection pushes you to behave in that way toward your lover. After all, they might not be perfectly honest with you, either; you might try to talk to them about your feelings or your problems, and they fake interest or concern because they really don't get what you're talking about or why you feel like you do. Even though they don't mean this in a bad way, it could be really hurtful to you to feel like they don't honestly care about you or your feelings. Try not to argue about it; a better way is to admit to each other that you really aren't operating from the same page, and see if you can't talk things out and bridge the gap between you.