I started seeing someone couple of weeks ago. Yes we matched on tinder and nit met before but we have many mutual friends & know each others family members. Hence why he already knew a lot about me. I was glad because for some reason i thought it was some sort of security - not just a random tinder date. The 2 weeks were very intense & we were spending a lot of time together. If he's not with me he calls or texts. He knew i have been through tough time with my ex and said he would never mess me around. Cutting ling story short i found out he is messaging girls on tinder and arranging to meet them. How i know? He started to chat up my friend, when we chatted the other day & she was telling me about this guy shes going on a date with. My jaw dropped... he is still calling me, we arranged to see eachother again. He doesn't know i know. My question is. What should i do? My instinct is run - he's not in it for the same reasons. But i spoke to few people who say " its only been few weeks, you have not had the exclusuve conversation he's not doing anything wrong". I feel used because when he's with me he acts like i'm the only woman in the world. But obviously that is not the case... pleae help. Be nice