So the other day I went onto Instagram and I had a message from someone I was briefly seeing for around 2 months, but this was 4 years ago, we haven't spoken since then as he told me he wanted to get back with his ex and that they were living with an illness that they would eventually die from, but I took him to all of his hospital appointments. He is no longer with that ex and now lives 200 miles away with a new partner. He said he was gutted when I'd cut him off, but how could he not expect me to do so when he wanted to get back with an ex. He now wants me to meet him next week for food as he is coming back to my home town. Do you think his new girlfriend knows he is in my DMs? Am I the one in the wrong for feeling guilty?