Should I really take him back?

[Lucy Victoria]

Me and my boyfriend have been together a year and a half, around 4 months ago he suggested we go out instead of just spending time inside, which I happily agreed to. I took him out to meet some people that I knew, it was fun and then we came home and arranged to go out again.
The next time we had planned to go out, he said he was busy so he couldn't go, so in return, I didn't go either, seeing as it was a thing we were doing together. Later on I find out that he did go, and he's meeting all these girls.

We had some fights about it because on one hand I just felt totally forgotten, like he had gone and didn't want me there and just went anyway, but on the other hand I was also angry because from then on, he was getting these messages from girls telling him they loved him. (I wasn't intentionally looking at his phone, he left it on the message and I walked in and saw it)

So basically, one of these girls started taking him out, inviting him places, letting him over, and I was never ONCE acknowledged by this girl. No 'you can bring you girlfriend' or anything of the sort. He said he made it clear to her that he had one, and that the girl just thought it would be awkward. Him saying that obviously made me a bit uneasy, but because I do trust him, I dismissed it, but still it did spur a lot of arguments due to my insecurity.

Long story short, we ended up going on a break, it was VERY short, about 4 days, but when we came back together, he said to me 'So did you have sex with anyone' and I was actually shocked. I said to him that I couldn't even think about KISSING anyone, let alone having sex with them. He was silent. So I asked him the same question back 'Did you?'

His answer was yes.
And the girl was the girl that we had argued over all that time.
I asked him if he was still going to talk to her after this and he said 'It meant nothing, I'm still friends with her'

I still love him, I still want him, but I don't think it's going to be the same now I know that my so called 'paranoia' was in the end, true, and now he's been with her, I don't know if I can look at him in the same way. He says he's going to still see her, but now I think he has to understand my worries about it, now this has happened.

It's sparked a lot of insecurity and questions in me.

I'm just so upset, because I'm trying so hard to make it work, but I'm not sure if I should let it go now. Can I still even trust him?

[Sam in New York]

You have to decide what's important to you. If you need to be the only girl that he gives sexual attention to, maybe you need to find someone else. It seems since he strayed so much in the past, you can't really expect him to do a 180. Well, I just don't know for sure, but I'd say good-bye.

[DanielW.]

all I can say is DON'T TAKE HIM BACK. I have been there with my ex and trust me if they know they can get away with it the first time they will do it again, and again and again. They don't care who they hurt all they care about is getting some sex, and or are playing a game on how many partners they can get at one time.

Do not take him back