I'm really getting upset about how my child is acting around me

So me and my 20 month old daughter have always had a great relationship Me and her mum split when she was 7months oldI have her Sunday nights Tuesday afternoon and Thursday overnight.I've always tried my best even though I still live at my mum's now due to the breakup and although me and my ex don't always get on she's always said im a good dad. And my daughter has always been upset and shouted for me whenever she has to leave or on video calls. But the last week or so.She just ignores me and I dunno what to do, she makes me feel like a shit dad and then I don't enjoy the rest of my time with her which I hate aswell.I end up shouting sometimes and then I cry because I feel bad about that.I shouted this morning because my sister was here with her new born baby and she was so happy and smiling and playing and then I tried to give her breakfast biscuits and she just screamed and crumbled up all of it on my bed and I shouted. Then I cried and she brought me a babywipe and I cried more.I just don't know what to do ATM I no I'm not an incredible dad but I do my absolute best to make her smile and have what she wants. And now I feel like she hates me.Around anyone else including my new partner she is fine and goes to her for hugs instead of me now. Same with my mum and sisters she'll be playful and happy then it's like as soon as I try to get involve or even talk her mood drops completely. via /r/Parenting https://ift.tt/2RS3KEk