Toxic?

Need some friendship advice.

A person I became friends with, we have a unique situation because we are both not in our countries of origin which can breed loneliness but I am wondering if this situation with this person is beyond that.

This person I became friends has become so needy that I finally had to put boundaries down and this person did not like it at all. Let me list some of the stuff that was going on and my question is- does this person sound toxic? And were they really a friend in the first place? The behavior of this person left me reeling and I haven't known what to think.

* Incessant calling, sometimes to the point of 6 times a day and multiple texts and this could be even after we have spent an afternoon together hanging out.
* Always in drama mode about one thing or another.
* Interrupting my work, walking in the middle of my work and wanting to talk about their problems right then and there.
* Deleting my phone number if I have refused to answer their 4th in a row call. This person does this to a lot of people I found out.
* Asking for advice, I give it and then the person wants to revisit their issue even after advice given (which they asked for), but wanting to revisit it by calling back 3 times in a row (this has happen on a few occasions), emailing me over and over, or coming into my work to talk about it further after we have JUST talked about it.
* When going out with this person they end up wanting to do more then what was agreed upon and sometimes hanging out becomes a 4 to 5 hour deal.
* Wants to borrow money because they don't manage their money because they go shopping all the time- this spending money all the time would also occur during the 4 to 5 hour shopping and hanging out deals.
* Constantly late and expects others to wait for them.
* Sends emails saying how much they value you as a person and the friendship worded in such a way that you feel manipulated in the end.
* Gossips like crazy and seems to want to be the bearer of all information about others and gets upset when they are not. (yes, this person has reacted this way!)

So there you have it, my guilt is in that, this person does have good qualities believe or not and in small doses is a fun person but it seems that with this person it is an all or nothing deal when being their friend.

Unfortunately, this person's behavior is alienating a lot of people in the community we are a part of and I feel very sorry for them.

When I put my boundaries, I blew a gasket and unleashed a letter to them telling them they desperately needed help and were not adjusting to the new environment we both find ourselves in.

Perhaps I just needed to vent her but any advice or wisdom you can part to me with regards to this situation would be much appreciated!

Thanks