Ex and his Family

I don't know, maybe I am overreacting. I'm just over everything, I wish my daughter and I can just disappear. Or her dad would go away. I know I should be grateful that he's an involved dad, but is he involved for the right reasons? Or to try and benefit off of our child? My ex and I split up right after I had our first child. He asked, If I would give him some money, from the income tax. I had just had our baby, so it wouldn't be til this past year. I had asked him for help paying the sitter, he said if he was paying then he would claim our daughter on his tax. We would argue some times, and he would say he wanted a paternity test, when him and I were together for 9yrs. When she was a baby, yes he would want to take her, only reason why I wouldn't, was because she was a newborn. But when I would ask him to come visit atleast every weekend he wouldn't, he had a life. It wasn't until she was 6months, when we fully agreed on every other weekend. Now, I decided to file child support. Just thought it was for the best, finally. Now his mom suggested he'd order a paternity test. And this lady here, is who advised I filed for child support, when we first split. I pay her when I can, when she watches my daughter, and she has the audacity to say that I don't.. Reallyyyy.. I'm sorry to vent. I just don't want my child around fake love. I agreed to let her spend the night with her dad 2 nights out of the week. I really don't want to though, I just feel like I'm in a sticky situation. If I don't, then I'm petty. Bitter. Never let him grab her.