Am I being childish

hi i have been with my partner for 13 years he has a daughter she is 23 years old iam 29 years old and my partner is 43 years old and me and my partner have to children 9 and 11 years old. when i first met my partner he told me about his daughter and it didnt bother me as i knew he wasnt aloud to see her. when she was 14 she decided to get in contact with him i was abit scared at first to meet her but she seemed really nice at first but then she would start causing trouble between me and my partner he would stand by her all the time and it was driving us apart she hated my kids and she even told them not that they really understood at the time when we had days planned to go out she would change everything and my partner would stand by her all the time,if she wanted something he would get it for her and would leave our kids out, he would forget my birthday when it was her's he would go out the way for her get her everything she wanted and then she would rub it in my face saying what did you get for your birthday oh nothing hahaha this is what i got of my daddy she got alot of money and goods out of him and then decided she didnt want to see him anymore. me and my partner own a food trailor in the town where the clubs are when she was 21 she came there shouting loads of abuse at me saying i was a fat s**g i need to look at myself in the mirror also saying my partner slept with her mum a few months ago he still loves her not me and was asking me to fight her i didnt but my partner gave her a cuddle and took her home came back and started putting the blame on me. she is 23 now and she still comes to the trailer shouting abuse but this time at my partner a week before christmas she came over to him and spoke to him really nice and told him to have a good christmas when he told me i just smilled and said i was happy for him but really i was so bloody angry cause i knew what she wanted a christmas present from him. christmas day came and i got a really nice christmas present of him some perfume and a pair of earings which were £500 later on that night he had a text message saying thankyou for the perfume and the earings hope you have a good christmas and it was from his daughter i was so bloody angry and started shouting at him how could he buy her something when she treats us like this how could he go and buy her the same bloody things as me i am still not talking to as i am so angry he cant see what she is like am i being stupid and childish i really dont no what to do as i am so bloody fed up with her now i am with him to.

Come on !! You know the answer !! This guy is not treating the mother of his other two children right . I would be furious . Dont be scared to leave him if he treats you like this . You CAN meet someone nicer ok . Better than being hurt . Your spelling is atrocious by the way -- only kidding x

lol is my spelling that bad lmao cheaky. i would love to leave him but 13 years is along time and i just cant be arsed with the hassle.