Female friend love bombs and then lets me down

I need advice about a female friendship I have had for 1.5 years. I moved to a new city and met a girl through work who I felt I clicked with. We met up a few times and all was well.

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She let me down once when we are to meet for lunch, giving an hour notice, saying she is stuck christmas shopping.

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Then she is leaving her partner and moving away and I supported her with this; helping with packing and transporting boxes.

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She returns a few months later and says she has come back because I am here. Then I don't hear from her too much. I start to put together that she is back with her ex.

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After a few months, she texts me to meet up. I don't respond and she messages a week later asking if I am mad at her, I explain I felt let down and that she is clearly back with her ex. She apologises and wants to make it up to me. She texts to meet up and then annouces she is engaged.

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A few weeks before her wedding, she last minute wants me to come to hers for a girly night and I can't because I have plans.

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I attend her wedding which is a medium sized affair that lasts three days. It is clear I am her closest friend living in this city though personally I don't feel that close with her.

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We meet up a few times over the next few months. She brings me gifts but one time tells me she has made me food but I have to collect it. I didn't ask for the food and it feels like I have been given a chore by having to collect it but I don't want to be ungrateful so I arrange to get it the next day.

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Then the final straw, we organise dinner and she cancels with 50 minutes notice saying she is stuck shopping with her partner.

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She has now text me again a week later explaining that she has been busy looking to buy a new house.

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I don't want conflict but I honestly feel like I don't want this friendship. She acts like we are close but to me it feels superficial. I don't want the drama of ending a friendship but I don't enjoy being let down.

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Can someone objectively tell me their thoughts on this pattern? I feel like I am being overdramatic wanting to end the friendship but I feel like she calls all the shots. She is not someone I see in groups so I cannot even phase it back to that. I will likely bump into her so don't want a toxic end. I also am afraid of confrontation as my fear is things could get nasty. I am a sensitive person and words or suggestions that I am not a good friend would hurt.

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Another friend feels this friend doesn't deserve me as I give my all to friendship.