He told me he wanted to get back with his ex

hi, so my friend set me up with this guy and the first date went really well. He told me he likes me and we had our first kiss. Second date came along and it too went well and at this point we already hooked up/gone all the way. When we spend time together he asks me questions about myself and genuinely seems interested. The third date comes up but he told me something was off and that his life is in shambles. He opens up to me that he was in a 6 year relationship and he is not over her due to the length of their relationship. To add, they were suppose to get married but he freaked out and broke up with her. They have the same friends and hangout in the same areas. However, his ex lives in another country with their friends. The guy I was seeing studied abroad all his life but came back to work for his family. He then informs me that he is going on a 2 week vacation and that he is going to try and work things out with the ex. So I didn’t see him for the next 3 weeks even though he kept messaging and asking to meet my friends. I didn’t know if I was the rebound or what but I did enjoy his company/liked him. His last night here before he left for vacation I was with him but he hasn’t messaged me since he left. I was able to view his socials and noticed that him and his ex didn’t work out because she moved on to someone new. It’s been a couple of days now and I’m not sure if I should just forget about him or message asking what happened. Should I give it time?