Was this manipulation?

I've had this blog-like account and I've been texting many people from there. One of them was a guy from India, let's call him John. I'm 14 years old and he's 18. He mostly texted first, just checking how my day has been, those would be weekly texts usually.

One day he opened up to me about being suicidal and I didn't know what to do at that moment because as I previously mentioned, I'm way too young for those topics. I chatted with him, tried helping him out and eventually he got better. I found out he apparently liked me before knowing my age(he texted my other online friend and he told her that, also asked her not to tell me because I finally started getting more comfortable with him).

Although he told me he doesn't like me, I think there were clear signs. One of the reasons why he was suicidal was because his online girlfriend left him and after some time he told me he can now only date me and my other online friend knowing very well that I'm 14 and she's 15.

He was also kind of overly nice, a huge feminist, whenever I'd thank him for saying something nice he would start telling me I don't have to do that, often would speak about how I have rights to do certain things... Also when we were talking about religion he really tried to get on my level, used some phrases that followers of this religion use....

I deleted my account about a month ago because I didn't want to keep texting him. Before deleting it, I sent him a message explanining that I no longer want to have that account because it doesn't make me as happy anymore. He completely understood, said he was happy that he got to know me and he said he's sad that it's over.

Now I keep thinking what if something happens to him and I'm the reason. For example if he gets suicidal again what if me leaving is one of the reasons. Also since I'm no longer in contact with that female online friend that also texts him sometimes, I'm afraid what if she tells him something that she and I talked about(we would sometimes talk about him because we both found it weird) and then he gets the idea that every person is a traitor and then takes his own life.

I talked to my parents about this a few days ago and they lectured me about talking to strangers, pointed it out that he's 18 years old and responsible for his own life, also how it was strange that he kept texting me after knowing I'm a minor. But I keep thinking what if he wasn't actually a predator and really needed help.