Ok what do you do about your husband and his family still in contact with his ex's??

this is not a jealousy think whatsoever, more of a disrespect and inapporpriate. so me and my husband have been together for 4 years, 5 in february. we have a 3 year old and one on the way. he loves me, i love him. we live a state away from all the family and drama. i am SOOOO sick of his family it's not funny!!! and his uncle, who has been married to a woman is the same way. It's like we're outsiders!!! sooo to make a long story short. My husband's ex, who cheated on him, 3 years before we met, is still in the picture!! I mean I think his family buys her birthday, and christmas gifts, and they don't buy me gifts?? She has a 5 year old, and when my husband and i first started dating they would joke about how much this little girl looks like him. like it was funny to me?? her name is erica, and my husbands name is eric. Name suggestions for our girls?? Erica!!! When she had a problem with her Heating and Air, which my husband used to do, they gave her his number to call