lesbian relationship advice

Nikki x • 20, single, & sc: nexxmindz lover of all things positive good hearted human being

so there's this girl I really like and we've been talking for like 8 months basically we talk 24/7 I don't know if she likes me back I'm so into her and she's is so great should she be telling me that she likes me or have feelings for me or should I just wait I fear she's in love with her ex and just uses me when she's bored or want my attention what should I do she say it's because she's Korean and was taught to not show emotions we hang out at her apartment a lot and just play games or goof around but as soon as her ex hit her up she goes to the next room I think something is going on what should I do ?