Why did this happen to me?

Person I’m interested in is very hot and cold, texting daily for 5 months, then suggested coffee, after coffee, texting stopped, they stopped texting back. Then went to an event with th and had lunch after 4 months after coffee then ghosted again.

I Do multiple mental health events per year including conferences throughout the country. I went once to the conference before the daily talking and she ignored me when I talked to her. Months later is when we got closer and got coffee, lunch etc. really confused.

At these conferences I feel unwanted and cry myself to sleep in the hotel room.

Got them a gift for Christmas, 3 months later not acknowledged. Doesn’t respond.

Been in therapy twice a week for two years trying to get over this episode. Experiencing. severe depression.