I swallowed for my bf and he had asked me to swallow. I was going to anyways. At the end when he was done coming in my mouth I looked up at him and swallowed. He then made me use mouth wash and was weird about kissing me. I asked what was so weird for him since he asked me to swallow and he said it was gross. He said he didn’t want me to spit it back on his dick but he also didn’t want to see my swallow it . We are teenagers and this was his first time finishing from a blow Joh to give context. What should I do next time? Do other guys feel this way?