My boyfriend called me a “chore to look after”

Me and my now boyfriend, let's call T have been in a relationship for about 4-6 months. Before we dated I was in a toxic relationship wich only involved lust. Also in this time my best friend of 1 year unalived herself wich I was and still am struggling mentally wise. I was getting therapy before any of this happened due to some passed issues but whilst me and T have been talking he said I am always "gloomy". This was very hurtful since I try to be as happy as can be but due to stress in family , friends and work it been very hard. I find it very difficult to socialise to anyone accept a small grouo of 4-5 people. It feels like whenever I talk to someone I will just looose them. It's a very hurtful feeling I haven't shared but he knows I find it difficult to socialise. I only really talk to him and a few more people in a day and he said spending time with me is more of a burden. This nearly bought me to tears since he is the one person I care most for. Me and his friends have a very bad situation so I can't bare hanging out with them. What should I do