Even though my boyfriend says me loves me I can’t tell..

My boyfriend says he loves me but I can’t tell. He is so distant with me. We will get into an argument and he will ignore me for days rather than trying to solve the problem. He has called me out my name 2 times in the past week. He doesn’t treat me like how he did when we first got together.. When we first got together we were constantly together, going on dates, he would always want to be under me (hugging me and stuff). He would text me all day while I was at work or if I was at home he would just talk on the phone to me all day. But now that doesn’t happen. He still post me on his social media, takes pictures of me and stuff but he is just being so distant with me. Most of the time I’m saying I love you first but when we first started going together he’d say it. When I asked him what’s wrong he said I’m thinking too hard and in my feeling... I feel like it may be something with his personal life family and stuff but he won’t open up and talk to me about it. What would you guys do I’m so lost right now...?