In general, these types of conflicts are best handled by moving toward them, not away from them. Trying to avoid her, even though she is difficult, is likely to make her even more needy and demanding.
Spend some time one-on-one with her. Go for coffee, or lunch, or shopping. Find ways to ask for her opinion of something that she is good at and let her feel helpful. Let her see the parts of you that are willing and able to make the extension toward her.
You may also want to talk with your husband and invite him to make preemptive connections with her. Him sending a text or emoji will allow her to feel his connection more readily and this, I believe, will help your effort as well.
The goal is to develop a relationship with her that gives you more opportunities with her and her behavior than you have now. Right now avoidance is the only strategy. My encouragement is to move closer to her so you can have greater ease and flexibility in the future when your children come along.