<human>: Can you succinctly summarize the text in 1-3 sentences?

Hello,

Ok, so I have been in a relationship with my gf for nearly four years now. We are happy, etc... 

She had a kid with her ex and the guy has always been trying to get her back. She always said that it had no impact but this time it really pissed me off : for her birthday, I took her to a trip (and it took time, and money, an I wanted to please her a lot) to a place she really loves. He stalked her probably on a social network, and sent to her work a gift related to this place.

I know the guy is a douche, and I am used to it, but her reaction really scared me. She was touched by the gift. She also said "Well he is playing sensitive. He knows my heart". And that hurt me. A lot.

I said I was pissed by this awkwardness, and that guy was pushing the limits. I don't want to get in a fight with him or whatever, I am afraid that she did accept the gift and that she accepted.

I said that I love her, I also like the kid a lot, I take my time to fix the mistakes with the kid, and have to deal with the ex and that all this is really pissing me off. Her answer really blocked me : "I would have prefered to get that gift for you"

I feel sick about it now... 

What do you think /r/
<bot>: relationship with gf, dealing with an invasive ex, he sent her a gift she liked, that makes me sick... Don't know how to feel