@MrGiggles25,
Giggles get this. You are imposing on her summer vacation. She is not lonely or bored, or looking for conversation on her Phone. She has things to do, and the last thing she needs is to be reminded of being stuck at school.
She will message you when she does. and do not smother her. But reality is you need to broaden your social group. be less clingy, and be there for her when she wants you. (if you have time (regardless if if you have patience to deal with her needs.))
Otherwise. buck up. be a man. get fit. study. be social. drink. ride. read.
and push come to shove. you will both have new friends and new classes and new SPARES between classes next year that will(probably separate you.) .
If you do not work on your social life next year. you'll have less the year after. so go out and be SWAB. She is still your friend. So do not throw that under the bus.
peace.
and you'll do great for yourself.