I only raised one steer, my brother's project that he gave me, like the 14 chickens he ordered that ended up at my house

I was thinking she wanted to play but then again I don't know cattle. Yup, you need to cut back on the attention, you're expecting another so she'll have company. Feed & water, less TLC ... Don't think it's safe to let her follow you unless you got eyes behind you.
res & cassie seem to know cattle, it's best they advise you. Just be careful, the steer I had loved running at me but would stop about 5' from me. I'd yell a loud, firm HEY, my brother ended up tethering him to a long run for my safety. He would not have hurt me intentionally but he could have not knowing his strength. It was funny when the guys went to load him, they couldn't get to the lead. I walked up, undid it and loaded him on the trailer. Knew where they were taking him, cried all the way home & told my brother to loose my number