Need advice about this girl?

Need advice about a girl that i hook up with couple months ago. Story goes as this from the beginning, this girl i met and know a for a little while she is a close friend of the family and we hook up one night a party and slept together and i called her few times after that trying to go on a date but she has 2 kids and could really never set up a date but she did invite me to her house she was having a get together i did go but since some her family was there i wanted to be respectful and not making a move since i didn't know if her family knew what had happened with us so nothing happen.I did text her her couple days after and and told her it was still nice to see her and talk with her. Well in between the time with had a night together and me going to her house a month had gone by. Tried to call her few days after that but she never returned the call. well now two months had gone by without talking to her. She still is on my facebook and had time she likes some of my status which seemed weird to me since she never returned my call. She wished me happy birthday on facebook just like everyone else on my facebook. Well so one night she writes a status on facebook saying she was kid free that night and was going to stay in and rest and watch movies so i decided to respond here is the exchange let me know what you think

Me: Sound good I'll bring a movie and bottle wine ...lol·

Her: OMG ..thanx but Im going to dinner. But thanx anyway stranger lol

Me:Stranger? Where that come from?

Her: Well u never even talk to me no more.lol

Me: No no sweety I called u but you never call back lol

Her:Ok once.. lmao but ill keep in touch

Me: Ok but don't wait too long lmao..

Should i try to call her back or leave it alone since what she wrote "but ill keep in touch". To me doesn't seem like she is interested by writing that or its a big vague.I was in a 10 marriage before that so my game is bit rusty. Any advice on what i should do stay friends and not call her or call her just