So I have this friend that I met because we sat next to each other in class and he would talk about his love life and stuff. I noticed he had REALLY BAD attachment issues with his crush but he's never been diagnosed with anything so I just tried to give my honest opinion on which situations he was over thinking. School year ends and he starts becoming a lot clingier than I remember, and being super set on the fact that we are best friends, even though we barely hang out. I'm pretty sure I'm his favorite person and Im on my way up to college. I really just want to focus on my life but he can't let go. He insists we talk every day and I honestly just want to focus on making friends at my university which is a 12 hour drive away from home and I would much rather spend any time in my phone with my closer friends I left behind. I don't want to break this persons heart but I don't know how to distance myself without being super harsh or cold about it. Any advice? Also there is nothing romantic between us, and I don't get any romantic vibes it's all attachment issues.