Letting go

So my ex and I broke up a few months ago and it’s fair to say I’m still in love with him and have been heartbroken for this whole time... he was my first love and we connected really well and the breakup came really abruptly due to timing... we both finished high school and were about to begin busy summers and go to uni and among a lot of details I won’t bore you with he basically didn’t feel he could be present in the relationship and give me what I need and wanted to end it before it went sour, so he ended it whilst things were still going really well and we were happy.. I thought at least we were!! I am at the point now where I know that I need to let go and move on as I’m about to start an exciting new chapter in my life, but when I think abkht letting him go and accepting that theres no future there I get so sad to imagine us both being with other people and not being in each other’s lives :( it’s like I’m hindering my recovery by holding on to the hope he will come back even tho I know the time is not right at the moment... will this feeling pass? Is hoping for something to change too naive?