Confused about her feelings

Hi.. I got out of a long relationship 5 months ago. Since then I havnt been seeing anyone. About 2 months ago I met a girl and we clicked right away. The problem was that she was in a relationship and I didn't want to get in the middle. We kept in contact via texting and a random phone call. She would flirt a lot and I would flirt back. She wanted to come visit me but it didn't feel right because of the boyfriend. 3 weeks ago she left him. We still continued chatting but I was unsure about making the move and desided to give her time. Last weekend she said she wants to see me. So I took her out friday night. It was good. She said she enjoyd my company and every now and then she would touch my arm or leg. The next day she invited me to her mom's house for a drink and a swim. Same signs were seen there. The touching every now and then and she even came to sit on my lap once. When we left she gave me a hug and got in her car. I took the chance and kissed her before she could close the door. She didn't pull away or avoid the kiss. And sunday she said she missed me. The problem is she lives far from me and her work keeps her really busy. So I hardly ever get response from text messages and when I call she hardly answers. So I'm stuck not knowing weather she really likes me or if I maybe scared her off somehow. Would she have invited me to her mom if she didn't feel something.. I'm confused. I haven't been in the dating game for a long time.. Please give some feedback.

She's definitely into you - she invited you to her mom's house! Relax - take it slowly. Rome wasn't built in a day.