There’s a guy I used to be close to for most of last year until I found out he was lying about something and decided to leave his life. We didn’t talk to one another for almost half a year, which is when he decided to start inviting me to parties and get togethers. He ended up telling me he wants our friendship back and I agreed that we should go back to being friends. Now, he acts strange and even went from talking to me to avoiding me whenever we cross paths. I don’t really understand what his deal is.