<human>: Can you provide a brief rundown of the text in within 3 sentences?

Maybe not as high intensity as some of the posts on here but I just wanted other peoples perspectives.  Throw away since I'm 99.99% sure he knows my username. 

I've been broken up with my ex for almost five years. We were high-school sweethearts, lost our virginity to each other, blah, blah, blah. We dated for two years and broke up once I moved to college. It wasn't the best of relationships and it definitely couldn't withstand the long distance plus I'll admit I wasn't exactly the most mentally stable at the time. 

I hated the break-up and tried to talk to him again even if it was just to be friends. It never amounted to anything and I haven't spoken to him in about flour-ish years. 

The other day he starts to follow me on Instagram. No big deal, sort of weird but we're Facebook friends (I have all his posts hidden) so maybe not that odd. Then he messages me asking how I've been, talking about his cat, how he's graduated, music he plays, how he's probably moving back to our home state (where I'm currently living) soon, his trip abroad. I've sent a few messages back and forth with him but honestly; I don't understand why he's talking to me now.

 I don't really have anything to say and I'm not particularly interested in his life these days. I just don't know how to respond. His conversation seems rather…dead end. He doesn't seem to have a point, it's mostly idle conversation. I almost want to ask why on earth he suddenly wants to know about my life but I'm not that blunt.

 To be honest, I wouldn't mind talking to him again it just feels weird and forced. I'm curious to know if anyone has had a similar situation or ideas as to why he's interested in my life after so long. Thanks!
<bot>: – Ex who I've been broken up with for five years suddenly seems to want to get to know me again. I don't understand why.