The lying is definitely an issue. Your past before you met each other however is irrelevant, but what happens after is different. I personally wouldn’t sleep around if I was interested in someone. Does sound weird she called and keep in touch while on holiday but slept with someone during. Modern dating sounds horrible.
Girl he isn‘t „sweet and supportive“ if he says that to you
The lying is definitely an issue. Your past before you met each other however is irrelevant, but what happens after is different. I personally wouldn’t sleep around if I was interested in someone. Does sound weird she called and keep in touch while on holiday but slept with someone during. Modern dating sounds horrible.