I need some advice.

So I met a girl at a New Year’s Eve party. She’s 18 and Ima 27, night went well, we danced a bit. Fast forward to New Years, we’re hanging out blah blah blah. End of the night she’s heading home, pulled her aside and asked her if she likes me, she said yes, we kissed. Here’s the problem:

I met her on vacation in Mexico, I go there every year. I had to come back to the states for my job 2 days after her and I made a connection. She’s over there, I’m here. I have her number and we chat but I won’t see her until December.

What is your guys’ advice to maintain that connection before we see each other again? Chat over the phone mostly?? Or what else can y’all point out?