If you are an unmarried male, God could certainly be calling you to a religious vocation. I heard once that one in six young people have a vocation to the religious life, either as a priest, brother, or nun.
God gives you a choice. There are vocations, but like anything else they must be cooperated with. I would say get a spiritual adviser and talk to him about your concerns.
Doesn’t matter. A bishop once told me about his girlfriend from over 30 years ago. That was of course before he realized what he wanted to do in life and before he entered the seminary. See how that turned out.
DISCLAIMER: Catholic Answers has turned over the archive to Catholic-Questions.org and no longer owns, manages, or moderates the forums. For additional apologetics resources please visit www.catholic.com.