Sex with my Ex boyfriend

So about 3 months ago, my long term boyfriend of almost 5 years broke up with me. I think he was just ready to start moving on/start a new chapter for himself. I dont think we were going to go anywhere. We are both 19 so too young to get married at this point.

Although its been really difficult making progress moving on ive supported his decision and his happiness going forward with our relationship as just friends. Since the breakup we have been in contact over the phone and in person a hand full of times. We still have love for one another and we both want to stay close friends. I still have feelings for him of course but i distance myself when i need space.

Above all this, Melbourne Australia where I live is in lockdown. Uni has been put online and me and my ex’ first year of uni has been seriously compromised. We both haven’t been able to make new friends or get out and experience new things past the breakup. This has amplified our contact because realistically we are both so alone at the moment. It sounds strange but we have almost been experiencing and going through the breakup together. We have great communication. Its very out of the ordinary i guess.

He is still my best friend, and in the relationship we always sought to see each other more as best friends rather then boyfriend girlfriend.

All these elements combined has lead us to still have sexual feelings towards one another. And we have been having sex over the phone and in person and doing sexual things throughout the past 3 months or so. And I don’t regret any of it. Its purely sexual and no sparks are flying when we have it.

We dont want to hurt each other or ruin the friendship. I miss him alot. Im trying my best to focus on myself.

Any advice would much be appreciated.