I am asking for support and understand my ex partner?

I was 6 years in de-facto relationship with guy that i will call Doug. Relationship was allther time up-down. We had planty arguments. He kicked me from his place in November last year. However we kept contact until March this year. Yes i suffered with anexiety disorder and as concequences i sand 10 nasty messages to him on his mobile. I have stopped in March cos i met another guy (Mark) i concentrated on this relationship and stopped to contact Doug. Doug started to contact me. In one mob message he please me to call him. When he found out that i am in new relationship Doug become nice to me. He started to call me "sweety" and become gemntle toward me . He offered trip to Bali with him to me that I refused cos of Mark. Mark sensed it athat my feelings are on Doug side and he break up with me. My Lendlord wanted me out of her place and Doug accepted me beck. I learned that in previous 6 years made mistake not giving him enough space and changed it omnn better.