<human>: Recently my ex came back into my life. We dated for 2 years in college (8 years ago) At the beginning of the relationship we were head over heels, over time the relationship became toxic. He changed..he would disappear for 3-4 days at a time, neglect to call, but then come back like nothing was wrong. This led me to become insecure and spend many nights confused. It all ended when I found out he had been talking to other girls, and didn't choose me over them. I was heart-broken but we stopped speaking and I moved on in life rarely thinking about him. He got married last year. We hadn't spoken in 8 years.

4 months ago he got my number from a mutual friend. Long story short, he said he had been thinking of me for years and wanted to contact me but was unsure of how I would react. He apologized for past mistakes and said he missed me and loves the person that I am. I admitted that I missed having him in my life as he was once very important to me but I was happy he got in touch and I congratulated him on the wedding. We started to exchange emails almost daily and the occasional phone call. I realize this was not a smart move on my end but I let it happen. He also never opposed. We never met in person.

Today I decided that I couldn't speak to him anymore. I called him up and told him this is affecting me emotionally and that we should stop talking. I explained that I was happy we had gotten back in touch but this can't go on as old feelings have been re-surfacing. His response was a simple "yeah ok thats fine". 4 words. No feeling. Why is he like this? I asked him why he doesn't care. I asked him why it is so easy for him to end things when he was the one that contacted me after thinking of me for 8 years. He acts as if he has no emotions towards me and I don't understand why, when he obviously did if he got back in touch. He was always closed off even when we were dating. Why do men hide their feelings?

Give me a shortened version of the text
<bot>: Ex bf came back into my life. I want to end it. I told him my thoughts and feelings and he showed no emotion.