Just can’t connect with anyone

So after my first marriage I was ready to go and date and find love and all this. I got into a relationship with this man after and we had a baby right off the bat and he made all these promises and I was there for him and he basically used me. Now I cannot connect with anyone I’m like emotionless and basically don’t want to hug or be touched. He’s all out at the bars after our split and with other women but all I wanna do is go home and as much at times I wanna be spiteful I just don’t feel like it. Everyone keeps telling me to go have fun and date but every time I’m around men I just feel tired and don’t want it to go far. Feel like I can’t get close to them and even though I want sex I just can’t get my emotions in the right place to do so.