My sister has been in a relationship with a young man (both early 20’s). She broke up with him over two months ago. He has basically refused to be broken up with.

She’s doesn’t share a lot with me about it and is private about her relationship, but this is what I have learned from other people in her life and what bit she has shared.

Initially he kept showing up to her house, with flowers, apologies, trying to convince her to take him back. She has a hard time fully being done with someone she cares for so they kept in contact for a few weeks. She told me he started saying mean things to her when she wouldn’t take him back, and eventually told him they could no longer talk.

After a bit, he apologized again, and they started working through a few things and hanging out again.

That was the last I heard and I tried to not get involved. I was at her house with a group of friends earlier this month. I was taking a call on the porch when he marches by quickly, looks at me says “I’m sorry for being here”, then walks right into the home.

Initially I hadn’t thought much of it because I knew they had been in contact again. Then thinking about it I realized that was a bit weird. I peeked in the blinds and didn’t see either of them.

When I walked in I asked my other sibling what was going on and they told me when we had been outside earlier they noticed his vehicle and sister had been worried.

Turns out, sis had blocked him that day because when she refused to continue the relationship he called her over 60x and wouldn’t leave her alone. He had busted into the bathroom while she was on the toilet in a house full of her friends. I don’t know what the conversation was exactly, but she was a bit shaken. He left quickly after I went inside.

He has continued to bombard her on insta (the only place he hasn’t been blocked) until she finally blocked him on that just the other day. Apparently that day he barged in he told her he would see her in 1 month. (Initially this is a time frame she gave of how much space she needed before she had blocked him).

Obviously, as a protective older sibling I am thinking the worst. I do not trust this young man and his obsession makes me extremely nervous. In conversation with her, she doesn’t seem to be too worried about him doing anything to harm her, but I disagree.

I don’t fully remember the context of the conversation, but I believe it was after they broke up he said something along the lines of “is that because you think I’m going to shoot you?”

Please help me come up with ways to scare this fu**er off. I do not want to take chances.

TLDR: sisters ex bf has been stalking her, refusing to take no as an answer, barged into her house, calls endlessly since they broke up. I’m worried it could lead to something more dangerous.